Rahul123321
Rahul123321 Rahul123321
  • 25-05-2018
  • Social Studies
contestada

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

Respuesta :

tysonjeanette8p52jwr
tysonjeanette8p52jwr tysonjeanette8p52jwr
  • 27-05-2018
Answer:
1

Explanation:
sin
15
°
cos
75
°
+
cos
15
°
sin
75
°

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