ICSE Class 9 Complementary Angles MCQ New

ICSE Class 9 Complementary Angles MCQ New Pattern

ICSE Class 9 Complementary Angles MCQ By Clarify Knowledge

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THESE ARE QUESTION MCQ WILL BE SOON

1. Evaluate:

(i) cos 22^o/sin 68^o

(ii) tan 47^o/cot 43^o

(iii) sec 75^o/cosec 15^o

2. Show that:

(i) tan 10° tan 15° tan 75° tan 80° = 1

(ii) sin 42° sec 48° + cos 42° cosec 48° = 2

3. Express each of the following in terms of angles between 0°and 45°:

(i) sin 59°+ tan 63°

(ii) cosec 68°+ cot 72°

(iii) cos 74°+ sec 67°

4. Express each of the following in terms of angles between 0°and 45°:

(i) sin 59°+ tan 63°

(ii) cosec 68°+ cot 72°

(iii) cos 74°+ sec 67°

In each case, given below, find the value of angle A, where 0° ≤ A ≤ 90°.

(i) sin (90° – 3A). cosec 42° = 1

(ii) cos (90° – 3A).sec 77° = 1