Math, asked by anujchoudhary87374, 7 months ago

cos 0 + cos20
cOS + COS 40
cos + cos 60
8.
1
1
+
2 cos e 22 cos cos 20
+
1
23 cos cos 20 cos 22
+ ... to n terms.

Answers

Answered by vithlaniveer

1

Answer:

Cos-sec22....... terms find?

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