Questions
1. If tan
A =√3, then find all other trigonometric ratios.
2. Prove that (1/cos
A + tan A) (1-sin A/cos A) =1
3. If sin
A =√3/2, then find the value of angle ‘A’ and the value of sin
A +sin2A+sin2A
4. If angle A, B and
C are interior angles of a triangle than prove that cos2 (B/2+C/2)
+ cos2 (A/2) =1.
5. Find the value of
(2tan30/ 1 + tan230).
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