EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR MATHEMATICS>Chapter 10 - Trigonometric Ratios and Identities>NDA & NA EE 2020 Mathematics>Q 12

EASY

NDA & NA EE

IMPORTANT

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What is the maximum value of $\sin x \cdot \cos x ?$

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Important Questions on Trigonometric Ratios and Identities

EASY

NDA & NA EE

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR MATHEMATICS>Chapter 10 - Trigonometric Ratios and Identities>NDA & NA EE 2020 Mathematics>Q 13

What is the minimum value of

3 \cos (A + \frac{π}{3})

where

A \in R ?

EASY

NDA & NA EE

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR MATHEMATICS>Chapter 10 - Trigonometric Ratios and Identities>NDA & NA EE 2019 Paper 2 Mathematics>Q 14

If

cosec θ = \frac{29}{21},

where

0 < θ < 90 °,

then what is the value of

4 \sec θ + 4 \tan θ ?

MEDIUM

NDA & NA EE

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR MATHEMATICS>Chapter 10 - Trigonometric Ratios and Identities>NDA & NA EE 2019 Paper 2 Mathematics>Q 15

Consider the following statements

$1 .$ $\cos θ + \sec θ$ can never be equal to $1.5 .$

$2 .$ $\tan θ + \cot θ$ can never be less than $2 .$

Which of the above statements is/are correct?

EASY

NDA & NA EE

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR MATHEMATICS>Chapter 10 - Trigonometric Ratios and Identities>NDA & NA EE 2019 Paper 2 Mathematics>Q 16

If

\tan A - \tan B = x

and

\cot B - \cot A = y,

then what is the value of

\cot (A - B) ?

EASY

NDA & NA EE

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR MATHEMATICS>Chapter 10 - Trigonometric Ratios and Identities>NDA & NA EE 2019 Paper 2 Mathematics>Q 17

What is

\sin (α + β) - 2 \sin α \cos β +

\sin (α - β)

equal to?

EASY

NDA & NA EE

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR MATHEMATICS>Chapter 10 - Trigonometric Ratios and Identities>NDA & NA EE 2019 Paper 2 Mathematics>Q 18

If

2 \tan A = 3 \tan B = 1,

then what is

\tan (A - B)

equal to?

EASY

NDA & NA EE

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR MATHEMATICS>Chapter 10 - Trigonometric Ratios and Identities>NDA & NA EE 2019 Paper 2 Mathematics>Q 19

What is

\cos 80 ° + \cos 40 ° - \cos 20 °

equal to?

EASY

NDA & NA EE

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR MATHEMATICS>Chapter 10 - Trigonometric Ratios and Identities>NDA & NA EE 2019 Paper 2 Mathematics>Q 20

If angle $C$ of a triangle $A B C$ is a right angle, then what is $\tan A + \tan B$ equal to ?