If sin a + b is equal to sin a × cos b + cos a × sin b then find the value of : a) sin 75degree b)cos 15 degree

asked Apr 9, 2019 69.2k views

4 votes

If sin a + b is equal to sin a × cos b + cos a × sin b then find the value of :

a) sin 75degree
b)cos 15 degree

by Ndg

6.1k points

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2 votes

Answer:
1

Step-by-step explanation:
sin
15
°
cos
75
°
+
cos
15
°
sin
75
°

=
sin
(
15
°
+
75
°
)
=
sin
(
90
)
=
1

Dshepherd answered Apr 13, 2019

5.8k points

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