Mathematics · JEE

Trigonometrical identities and trigonometrical functions MCQs for JEE

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Master Trigonometrical identities and trigonometrical functions through exam-style multiple-choice questions. This page features 32+ JEE MCQs covering Trigonometrical identities and trigonometrical functions, each with verified answers and clear explanations.

Syllabus context

Part of Trigonometry in JEE Main Mathematics.

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Q1MathsUnit 14: Trigonometry

\mathbf{A}=\cos 20^{0} \cos 40^{0} \cos 60^{0} \cos 80^{0}

\mathbf{B}=\cos 6^{0} \cos 42^{0} \cos 66^{0} \cos 78^{0}

\mathbf{C}=\cos \mathbf{3} \mathbf{6}^{\mathbf{0}} \cos \mathbf{7} \mathbf{2}^{\mathbf{0}} \cos \mathbf{1 0} \mathbf{8}^{\mathbf{0}} \cos \mathbf{1} \mathbf{4} \mathbf{4}^{\mathbf{0}}

Q2MathsUnit 14: Trigonometry

The measures of the angles of a triangle are in the ratio

4: 5: 9 .

The triangle is:

Q3MathsUnit 14: Trigonometry

\ln \Delta A B C, B C=A B

and

\angle B=80^{\circ}

Then

\angle A

is equal to

Q4MathsUnit 14: Trigonometry

Two line segments

A B

and

A C

include an angle of

60^{0}

where

A B=5 \mathrm{cm}

and

A C

=7 \mathrm{cm} .

Locate points

\mathrm{P}

and

\mathrm{Q}

\mathrm{AB}

and

A C,

respectively such that

A P=\frac{3}{4}

A B

and

A Q=\frac{1}{4} A C .

Join

P

and

Q

and measure the length PQ.

Q5MathsUnit 14: Trigonometry

The terminal arm is in II quadrant, what are the measures of possible angles?

Q6MathsUnit 14: Trigonometry

\tan \theta=\frac{x \sin \phi}{1-x \cos \phi}, \tan \phi=

\frac{y \sin \theta}{1-y \cos \theta},

then

\frac{x}{y}=

Q7MathsUnit 14: Trigonometry

\sqrt{\frac{1-\sin A}{1+\sin A}}+\frac{\sin A}{\cos A}=\frac{1}{\cos A},

for all permissible values of

A,

then

A

belongs to This question has multiple correct options

Q8MathsUnit 14: Trigonometry

If two triangles are

_{--}-

they are similar.

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What type of Trigonometrical identities and trigonometrical functions MCQs appear in JEE?

JEE Main tests Trigonometrical identities and trigonometrical functions through conceptual and numerical MCQs. Goodmarks mirrors this format with four-option questions and detailed solutions.

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