Prove that cos 1 cos 2 cos 3 cos 180 is equal to zero
Answers
Answered by
1
Step-by-step explanation:
We know that cos 90=0.
Frm question
Cos1.cos2.cos3...........cos90..........cos180
Which is:
Cos1. Cos2. Cos3......... 0........cos180
Therfore
RHS=0
Hence proved
Answered by
1
Answer:
true
Step-by-step explanation:
cos1×cos2×.....×cos90×.....×cos180
= .....×0×......
=0(PROVED(
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