evaluate : sin27° cos63°+cos27° sin63°
(a)1
(b)2
(c)180
(d)90
(e)none of these
Answers
Answered by
0
Answer:
180 is the right answer...
Answered by
0
Answer:
sin27° cos63°+cos27° sin63°
=sin27° cos(90-27)°+cos27° sin(90-27)°
=sin27°sin27°+cos27°cos27°
=sin2 27°+cos2 27°
=1
Option (A)
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