Q. 175.0( 1 Vote )

# Choose the correct answer:A. 0B. 1C. 2D. 3

Consider + sin2 63° + cos 63°sin 27°

= + sin2 63° + cos 63° sin (90° – 63°)

= + sin2 63° + cos 63° cos 63°

= (1/1) + (sin2 63° + cos2 63°)

= 1 + 1

= 2

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