Cos^2(60°+A) + cos^2 (60°-A)
Answers
Answered by
1
Answer:
Correct option is
A
1
sin
2
60°+cos
2
60°=(
2
3
)
2
+(
2
1
)
2
⇒
4
3
+
4
1
=
4
4
=1
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