Modern's abc+ of Mathematics for Class 10>Chapter 8 - Introduction to Trigonometry>COMPETITION FILE>Q 9

MEDIUM

10th CBSE

IMPORTANT

Earn 100

If $\sin A + \sin^{2} A = 1$ , then the value of the expression $(\cos^{2} A + \cos^{4} A)$ is:

53.85% studentsanswered this correctly

Important Questions on Introduction to Trigonometry

EASY

10th CBSE

IMPORTANT

Modern's abc+ of Mathematics for Class 10>Chapter 8 - Introduction to Trigonometry>COMPETITION FILE>Q 10

Given that

\sin α = \frac{1}{2}

and

\cos β = \frac{1}{2}

, then the value of

(α + β)

is

MEDIUM

10th CBSE

IMPORTANT

Modern's abc+ of Mathematics for Class 10>Chapter 8 - Introduction to Trigonometry>COMPETITION FILE>Q 11

The value of the expression:

[\frac{\sin^{2} 22 ° + \sin^{2} 68 °}{\cos^{2} 22 ° + \cos^{2} 68 °} + \sin^{2} 63 ° + \cos 63 ° \sin 27 °]

is:

EASY

10th CBSE

IMPORTANT

Modern's abc+ of Mathematics for Class 10>Chapter 8 - Introduction to Trigonometry>COMPETITION FILE>Q 12

If

4 \tan θ = 3

, then

(\frac{4 \sin θ - \cos θ}{4 \sin θ + \cos θ})

is equal to

EASY

10th CBSE

IMPORTANT

Modern's abc+ of Mathematics for Class 10>Chapter 8 - Introduction to Trigonometry>COMPETITION FILE>Q 13

If

\sin θ - \cos θ = 0

, then the value of

(\sin^{4} θ + \cos^{4} θ)

is

EASY

10th CBSE

IMPORTANT

Modern's abc+ of Mathematics for Class 10>Chapter 8 - Introduction to Trigonometry>COMPETITION FILE>Q 14

\sin (45 ° + θ) - \cos (45 ° - θ)

is equal to:

EASY

10th CBSE

IMPORTANT

Modern's abc+ of Mathematics for Class 10>Chapter 8 - Introduction to Trigonometry>NATIONAL TALENT SEARCH EXAMINATION (NTSE)>Q 1

If

x

is acute, then

\sqrt{\frac{1 + \sin x}{1 - \sin x}}

is:

MEDIUM

10th CBSE

IMPORTANT

Modern's abc+ of Mathematics for Class 10>Chapter 8 - Introduction to Trigonometry>NATIONAL TALENT SEARCH EXAMINATION (NTSE)>Q 2

The value of

\tan \frac{2 π}{5} - \tan \frac{π}{15} - \sqrt{3} \tan \frac{2 π}{15} \tan \frac{π}{15}

is

MEDIUM

10th CBSE

IMPORTANT

Modern's abc+ of Mathematics for Class 10>Chapter 8 - Introduction to Trigonometry>NATIONAL TALENT SEARCH EXAMINATION (NTSE)>Q 3

The value of

\sin^{2} α \cos^{2} β + \cos^{2} α \sin^{2} β + \sin^{2} α \sin^{2} β + \cos^{2} α \cos^{2} β

is: