Math, asked by jot7268, 9 months ago

cos38cos52-sin38sin52=0

Answers

Answered by Anonymous

6

Answer:

hey mate please refer to the attachment

Attachments:

Answered by rishu6845

2

Answer:

cos38 cos52-sin38 sin52=0

Step-by-step explanation:

cosA cosB-sinA sinB=cos(A+B)

Now

cos38 cos52-sin38 sin52=cos(38+52)

=cos(90)

= 0

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