Proveed that:
tan 5A + tan 3A/tan 5A - tan3A
= 4 cos 4A cos 2A
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Answered by
1
Answer:
which standard this question is ?
Answered by
0
Step-by-step explanation:
tan
5
A
+
tan
3
A
tan
5
−
tan
3
A
=
4
cos
4
A
cos
2
A
tan5A+tan3Atan5-tan3A=4cos4Acos2Atan 5A + tan3A - 4cos 4A cos2Atan5A - tan 3A
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