Same chapter3 marksDifficulty: Medium
If sin A = 3/5 and A lies in the second quadrant, find cos A and tan A.
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3 marksDifficulty: Medium
Find the value of sin 15°.
Original Khojo Papers practice question — not from a past board paper.
Answer
(√6 − √2)/4
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
sin 15° = sin(45° − 30°) = sin 45° cos 30° − cos 45° sin 30° = (√6 − √2)/4.
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