Trigonometrical Ratios ML Aggarwal Solutions ICSE Class-9 Chapter-17

Chapter-17 Trigonometrical Ratios for ICSE Class-9 Understanding APC Mathematics

Trigonometrical Ratios ML Aggarwal Solutions ICSE Class-9 Chapter-17. Step by step Answer of  of Exercise-17 , MCQ -17 and Chapter-Test 17 of Trigonometrical Ratios Class-9 ML Aggarwal Questions . Understanding APC Mathematics Solutions of Exercise-17 Trigonometrical Ratios Class-9 ML Aggarwal. Visit official website CISCE for detail information about ICSE Board Class-9.

Trigonometrical Ratios ML Aggarwal Understanding APC Solutions for ICSE Class-9 of Chapter-17


–: Select Topics :–

Exercise-17 ,

 MCQ 

Chapter-Test

( Only Some part of Questions is given as hint before each answer to avoid confusion) 

Note:- Before viewing Solutions of Chapter -17 Trigonometrical Ratios Class-9 .  Read the Chapter Carefully . Then solve all example given in Exercise-17. The Chapter-17 Trigonometrical Ratios for ICSE Class-9 is Main Chapter in Mathematics.


Exercise-17 Trigonometrical Ratios Class-9 ML Aggarwal Solutions 

Question 1

(a) From the figure (1) given below, find the values of:….

(b) From the figure (2) given below, find the values of:…..

Answer 1

 

Question 2

(a) From the figure (1) given below, find the values of:
(i) sin B (i) cos C (iii) sin B + sin C (iv) sin B cos C + sin C cos B

(b) From the figure (2) given below, find the values of……..

Answer 2

 

 

Question 3

From the figure (1) given below, find the value of sec …
(b) From the figure (2) given below, find the values of
(i) sin x (ii) cot x (iii) cot2 x- cosec2 x (iv) sec y (v) tan ……

Answer 3

 

 

Question  4

(a) From the figure (1) given below, find the values of:
(i) 2 sin y- cos y

(ii)2sinx-cosx
(iii) 1- sin x + cos y
(iv) 2 cos x-3 sin y +4 tan z.

(b) In the figure (2) given below, AABC is right-angled at B. If AB = y units,
BC = 3 units and CA = 5 units, find……

(i)sinx  (ii)y

Answer 4

 

 

Question  5

In a right-angled triangle, it is given that angle A is an acute angle and that
Tan A=5/12 Find the values of:
(i) cos A
(ii) cosec A- cot A.

Answer 5

Question  6

(a) In ..ABC, A = 90°. If AB 7 cm and BC- AC 1 cm, find :
(1) sin C
(i) tan B
(b) In …PQR,Q = 90°. If PQ = 40 cm and PR + QR = 50 cm, find :
(1) sin P
(ii) cos P
(ti) tan R

Answer 6

Question 7

in triangle abc……..

Answer 7

Question 8

(a) ln the figure given below. ABC is ….

(b) in the figure 2…….

(c)in the figure 3 ….

Answer 8

 

Question  9

If sin …….=3/5 and  …….

Answer 9

 

Question 10

Given that tan …………
……..

Answer 10

 

Question 11

if sin …………

Answer 11

Question 12

If tan …………

find the value of sin .. cos … (both sin and cos  are Positive)

Answer 12

 

 

Question 13

1f conec = √5 and is less than 90, find the value of cot -Cos

Answer 13

 

Question 14

given sin ………..

Answer 14

 

Question 15

It 0 is an acute angle and tan………..

Answer 15

Question 16

Given A is an acute angle and 13 sin A 5, evaluate:….

Answer 16

Question 17

Given A is an acute angle and cosec A 2, find the value of..

Answer 17

 

Question  18

The diagonnals AC and BD of a rhombus ABCD meet at O. If AC
ED = 6 cm, find sin …OCD

Answer 18

Question 19

 

Answer 19

Question 20

Given 5 cos A – 12 sin A = 0, find the value of….

Answer 20

 

 

Question 21

 

Answer 21

 

 

 

Question 22

If 3 cot 0 = 4, tind the value of ……

Answer 22

 

 

 

Question 23

(i) If 5 cos 0 – 12 sin 0 = 0, find the value of
13 find the value of….

(ii)……

Answer 23

 

Question 24

5 sin 0 = 3, find the value of…..

Answer 24

 

Question 25

 If 0 is an acute angle and sin 0 = cos 0, find the value of……..

Answer 25

 

Question 26

Prove the following:

Answer 26

Question 27

If in A ABC, 2C = 90° and tan A = ……..prove that
sin A cos B + cos A sin B = 1

Answer 27

 

Question 28

(a) In the figure (1) given below, AABC is right-angled at B and ABRS is right-angled
(b) In the figure (2) given below, AABC is right angled at B and BD is perpendicular
to AC. Find

Answer 28

 

Question 29

 In the adjoining figure, ABCD is a rectangle. Its diagonal
AC 15 cm and ZACD = a. If cot a =
perimeter and the area of the rectangle.
* find the

Answer 29

 

Question 30

 Using the measurements given in the figure alongside,
() find the values of:

Answer 30

 

Question 31

 Frove the following :
() (sin A + cos A) + (sin A – cos A)2 = 2

Answer 31

 

Question  32

Simplify…………

Answer  32

Question 33

If sin .. + cosec 0 = 2, find the value of sin? 0 + cosec2 0.

Answer 33

Question 34

Answer 34


MCQ of Exercise-17 Trigonometrical Ratios 

Question 1

the value of sinA……..

Answer 1

 

Question 2

the value of secA……..

Answer 2

 

Question 3

the value of tan C…….

Answer 3

 

Question 4

the value of cosec c……..

Answer 4

 

Question 5

the value of …….

Answer 5

 

Question 6

the value of ……..

Answer 6

 

Question 7

In the adjoining figure……….

Answer 7

 

Question 8

In the adjoining figure……….

Answer 8

 

Question 9

If cos………..

Answer 9

 

Question 10

If sin A………..

Answer 10

 

Question 11

If cosec………..

Answer 11

 

 

Question 12

If tan………..

Answer 12

 

Question 13

If sin………..

Answer 13

 

 


Chapter-Test of Exercise -17 Trigonometrical Ratios ML Aggarwal Solutions 

Question 1

(a)From the figure (i0) given below, calculate all the six t-ratios for both acute………

(b)From the figure (ii) given below, find the values of x and y in terms of t-ratios

Answer

 

 

Question 2

(a)From the figure (1) given below, find the values of……

(b) From the figure (2) given below, find the values of…..

Answer 2

 

 

 

Question 3

If q cos 0 = p, find tan 0- cot 0 in terms of p and q.

Answer 3

 

 

Question 4

Given 4 sin 0 = 3 cos 0, find the values of:

Answer 4

 

 

 

Question 5

If 2 cos 0 = 3, prove that 3 sin 0 – 4 sin3 0 = 1.

Answer 5

 

Question 6

if…………..of sin …

Answer 6

 

 

Question 7

If sin 0 + cosec e = 34, find the value of sin? 0 + cosec 0.

Answer 7

 

Question 8

In the adjoining figure, AB = 4 m and ED = 3 m.

Answer 8

 

Return to ML Aggarawal Maths Solutions for ICSE  Class-9.


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