EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR MATHEMATICS>Chapter 10 - Trigonometric Ratios and Identities>NDA & NA EE 2020 Mathematics>Q 6

EASY

NDA & NA EE

IMPORTANT

Earn 100

What is the value of $8 \cos 10 ° \cdot \cos 20 ° \cdot \cos 40 ° ?$

83.33% studentsanswered this correctly

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 7

What is the value of $\cos 48 ° - \cos 12 ° ?$

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 11

If

\sin x + \sin y = \cos y - \cos x

where

0 < y < x < \frac{π}{2},

then what is

\tan (\frac{x - y}{2})

equal to?

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 12

What is the maximum value of

\sin x \cdot \cos x ?

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?