If `sinA=1/2` find `sin2A` & `cos2A`

If sin A+cos2A=1//2 and cos A+sin2A=1//3 . Then find the value of sin 3A .

If sin A+cos2A=1//2 and cos A+sin2A=1//3 . Then find the value of sin 3A .

If sin A+cos2A=1//2 and cos A+sin2A=1//3 . Then find the value of sin 3A .

Choose the correct answer in each of the following questions: If sinA + sin^(2)A=1 " then " cos^(2)A+cos^(4)A=?

If sin2A=2sinA then A=

If sinA=3/5 , where 0^0ltAlt90^0 , then find the values of sin2A , cos2A ,tan2A and sin4A

If sinA=3/5 , where 0^0ltAlt90^0 , then find the values of sin2A , cos2A ,tan2A and sin4A

(sinA + sin3A) / (cosA + cos3A) = tanalpha, (cosA-cos2A) / (sinA + sin2A) = tanbeta, (sinA + sin3A + sin5A + sin7A) / (cosA + cos3A + cos5A + cos7A) = tan gamma , (cosA-cos5A-cos9A + cos13A) / (sinA-sin5A + sin9A-sin13A) = tandelta, then (a) alpha = 4beta (b) gamma = 2alpha (c) gamma = delta (d) none

Fill in the blanks so as to make each of the following statements true : If sinA+sin^(2)A=1 , then cos^(2)A+cos^(4)A=..