+ = 2, find the value of sin (A+B) + cos (A-B)
Answers
Answered by
0
Answer:
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Answered by
0
Step-by-step explanation:
⇒
sin(A+
B)=
sin[90
o
−
(A−
B)]
⇒
A+
B=
90
o
−
A−
B
⇒
2A=
90
o
⇒
A=
45
o
=
4
π
B=
0
A+
B=
4
π
B=
45
o
A+
B=
90
o
=
2
π
sin(A+ B)= cos(A− B)
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