Question

evaluate cot^230-cos^260-3/4sec^245-4sec^230​

Answer 1

Step-by-step explanation:

=(√3)^2-(1/2)^2-(3/4)(√2)^2-4(2/√3)^2

=3-1/4-3/4-3/4×2-4×4/3

!13-1/4-3/2-16/8

=22-12-16/8

=-6/8

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