Biology, asked by xxxPIYANIxxx, 5 months ago

cos× cos 30+ cos× cos 45+ cos× cos 60 + cos× cos 90

Answers

Answered by shupriya928

1

Cos2 30+ sin2 30 + cos2 45 +cos2 90

1+(1/2)2 + 0

3/2

Answered by psupriya789

1

Answer:

Cos2 30+ sin2 30 + cos2 45 +cos2 90

=1+(1/2)2 + 0

=3/2

Explanation:

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