Question

4upon5 tansquare 60 plus 3 sinsquare 60

Answer 1

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=4/tan^2(60) + 3sin^2(60)
=4/5(√3)^2 + 3(√3/2)^3
=4/15 + 9/4
=4×5+9×15/60
= 20+135/60
=155/60
=2.6
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