If tanA = 16/63 and A is an acute angle, then find sin2A, cos2A, tan2A.
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make samkon triangle and lal /kka tanA =l/a {lamb / adahar}
sin2a=2sinAcosA=2×(16/65)×(63/65)
cos2A=cos²A-sin²A
tan2A=2tanA/1-tan²A
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