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Prove the identity. cos (x + y) 1- tanx tany cosx cosy Note that each Statement must be based on a Rule chos the right of the Rule. Statement
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Prove the identity.

cos (x + y)
1- tanx tany
cosx cosy
Note that each Statement must be based on a Rule chos
the right of the Rule.
Statement

Prove the identity. cos (x + y) 1- tanx tany cosx cosy Note that each Statement must-example-1
User Yaroslav Melnichuk
by
8.2k points

1 Answer

3 votes

Answer:

Hi... I should do like this

Prove the identity. cos (x + y) 1- tanx tany cosx cosy Note that each Statement must-example-1
User Maalls
by
7.2k points
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