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This mock test of Test: Advanced Trigonometric Formula for JEE helps you for every JEE entrance exam.
This contains 10 Multiple Choice Questions for JEE Test: Advanced Trigonometric Formula (mcq) to study with solutions a complete question bank.
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QUESTION: 1

What is the value of tan 25°?

Solution:

QUESTION: 2

Find tan 40° ?

Solution:

QUESTION: 3

Find the value of 1 + cos2A.

Solution:

By formula

**Cos 2A** = Cos²A-Sin²A

Cos²A-Sin²A=Cos²A-(1-Cos²A) =Cos²A -1 +Cos²A=2** Cos²A** - 1

so, **Cos 2A** = 2** Cos²A** - 1

QUESTION: 4

What is the value of cos 4x ?

Solution:

QUESTION: 5

What is the value of cos 6X?

Solution:

QUESTION: 6

3 Sin 10° – 4 Sin^{3} 10° = ?

Solution:

3sinA-4sin^{3}A=sin^{3}A

Given, 3 sin 10° - 4 sin 3 10°

So, sin^{3}A i.e sin 30

= ½

QUESTION: 7

=

Solution:

QUESTION: 8

What is the value of Sin 6X ?

Solution:

QUESTION: 9

In a triangle ABC, sin 2A = ?

Solution:

QUESTION: 10

In a triangle ABC, if angle A = 72°, angle B = 48° and c = 9 cm then the Ĉ is

Solution:

In any traingle The sum of 3 sides of a traingle is equal to 180°

Given

A=72°

B=48°

A+B+C=180°

72°+48°+C=180°

C=180°-120°

C=60°

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