Class 10 Maths1)The value of cos 0°. cos 1°. cos 2°. cos 3 . cos 89° . cos 90° is

Correct Option: A

0

Class 10 Maths2)If x tan 45° sin 30° = cos 30° tan 30°, then x is equal to

Correct Option: B

1

Class 10 Maths3)If x and y are complementary angles, then

Correct Option: D

sec x = cosec y

Class 10 Maths4)sin 2B = 2 sin B is true when B is equal to

Correct Option: C

0°

Class 10 Maths5)If A and (2A – 45°) are acute angles such that sin A = cos (2A – 45°), then tan A is equal to

Correct Option: A

1

Class 10 Maths6)If y sin 45° cos 45° = tan2 45° – cos2 30°, then y = …

Correct Option: A

\(1 \over 2\)

Class 10 Maths7)What is the minimum value of sin A, 0 ≤ A ≤ 90°

Correct Option: A

0

Class 10 Maths8)What is the minimum value of cos θ, 0 ≤ θ ≤ 90°

Correct Option: A

0

Class 10 Maths9)Ratios of sides of a right triangle with respect to its acute angles are known as

Correct Option: A

trigonometric ratios of the angles

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