Find Sin2A, cos2A and tan2A, if sinA=4/5, 'A' lies in 2nd quadrant - Maths - Trigonometric Functions

Question

Find Sin2A, cos2A and tan2A, if sinA=4/5, 'A' lies in 2nd quadrant

Alok Kumar · Accepted Answer

Dear student,
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Find Sin2A, cos2A and tan2A, if sinA=4/5, 'A' lies in 2nd quadrant.