sin(28° + A) = cos(62° - A)
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Given equation : sin(28° + A) = cos(62° - A)
Solving L.H.S.
⇒ sin(28° + A)
⇒ sin [90° - (62° - A)]
By formula,
sin (90° - θ) = cos θ
⇒ cos (62° - A)
Since, L.H.S. = R.H.S.
Hence, proved that sin(28° + A) = cos(62° - A).
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