sin x + sin 3x
- = tan 2x
cos x + cos3x
Answers
Answered by
0
Answer: not ver sure but i guess its 2x+cos
Step-by-step explanation:
Justinmaina123:
hahahahaha
Answered by
1
Step-by-step explanation:
cos x + cos3x=cot 2x ,sin x + sin 3x
- = tan 2x
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