Trigonometry ML Aggarwal ISC Class-11 Maths Solutions Chapter-3. Step by step Solutions of ML Aggarwal ISC Class-11 Maths with Exe 1.1, Exe-1.2, Exe-1.3, Exe-1.4, Exe-1.5, Exe-1.6, Exe-1.7, Exe-1.8, Exe-1.9, Exe-1.10 and Chapter Test Questions. Visit official Website CISCE for detail information about ISC Board Class-11 Mathematics.

## Trigonometry ML Aggarwal ISC Class-11 Maths Solutions

Board | ISC |

Class | 11 |

Subject | Mathematics |

Chapter-3 | Trigonometric Function |

Session | 2024-25 |

Topics | Solutions of ML Aggarwal |

### Trigonometry

Trigonometry Functions : Trigonometry functions are measured in terms of radian for a circle drawn in the XY plane. Radian is nothing but the measure of an angle, just like a degree.

#### The difference between the degree and radian

**Degree**: If rotation from the initial side to the terminal side is (1/360)th of revolution, then the angle is said to measure 1 degree.

1 degree=60minutes

1 minute=60 second

**Radian:** If an angle is subtended at the center by an arc of length ‘l, the angle is measured as radian. Suppose θ is the angle formed at the center, then

θ = Length of the arc/radius of the circle.

θ = l/r

**Sign of Trigonometric Functions**

sin(-θ) = -sin θ

cos(-θ) = cos θ

tan(-θ) = -tan θ

cot(-θ) = -cot θ

sec(-θ) = sec θ

cosec(-θ) = -cosec θ

**Trigonometric Functions of Sum and Product of two angles**

**(I) **sin (x+y) = sin x cos y + cos x sin y

sin (x-y) = sin x cos y – cos x sin y

cos (x+y) = cos x cos y – sin x sin y

cos (x-y) = cos x cos y + sin x sin y

sin (π/2 – x) = cos x

cos (π/2 – x) = sin x

**(II) **tan (x+y) = (tan x + tan y) /(1−tan x tan y)

tan (x-y) = (tan x − tan y)/(1 + tan x tan y)

cot (x+y) = (cot x cot y −1)/(cot y + cot x)

cot(x-y) = (cot x cot y + 1)/( cot y − cot x)

**(III)**

cos 2x = cos^{2} x-sin^{2} x = 2cos^{2} x-1 = 1-2sin^{2} x = (1-tan^{2} x)/(1+tan^{2} x)

sin 2x = 2sin x cos x= 2tan x/(1+ tan^{2} x)

tan 2x = 2 tan x/(1-tan^{2} x)

**(IV)**

sin 3x = 3 sin x – 4 sin^{3} x

cos 3x = 4 cos^{3 }x – 3 cos x

tan 3x = [3tan x-tan^{3} x]/[1-3 tan^{2} x]

**Exe-3.1**

Trigonometry ML Aggarwal ISC Class-11 Maths Solutions Chapter-3

**Exe-3.2**

Trigonometry ML Aggarwal ISC Class-11 Maths Solutions Chapter-3

** **

**Exe-3.3**

Trigonometry ISC Class-11 Maths Solutions Chapter-3

** **

**Exe-3.4**

Trigonometry ML Aggarwal ISC Class-11 Maths Solutions Chapter-3

** **

**Exe-3.5**

Ch-3 Trigonometry ISC Class-11 Maths ML Aggarwal Solutions

** **

**Exe-3.6**

Ch-3 Trigonometry ISC Class-11 Maths Solutions Chapter-3

** **

**Exe-3.7**

Trigonometry ISC Class-11 Maths Solutions Chapter-3

** **

**Exe-3.8**

Trigonometry ML Aggarwal ISC Class-11 Maths Solutions Chapter-3

** **

**Exe-3.9**

Trigonometry ML Aggarwal ISC Class-11 Maths Solutions Chapter-3

** **

**Exe-3.10**

Trigonometry ISC Class-11 Maths Solutions Chapter-3

** **

**Chapter Test**

ML Aggarwal ISC Class-11 Maths Solutions Chapter-3

-: End of Trigonometry ML Aggarwal ISC Class-11 Maths Solutions Chapter-3 :-

Return to :- ML Aggrawal ISC Class-11 Maths Solutions

Thanks

Please share with your friends

The pages are not there…

uploaded very soon within a weak

Pages Are not Visible

Pages Are Visible

Nothing is there under the solutions

Please help

now full chapter showing now please visit again

No pages are there dumbfucks, can’t even make a webpage properly.

uploaded again soon if unavailable

Please pages are not present.

uploaded again soon if unavailable

Pages still aren’t available

3 days

3 days

Thank you so much

WHY THE REST OF EXERCISES ARE NOT VISIBLE ONLY UPTO 3.4 IS VISIBLE .WHY?

visit next page on bottom of each page