Cos²30 + cos²45 + cos² 60 = 3/2
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Step-by-step explanation:
(√3/2)^2 + (1/√2)^2 + (1/2)^2
= 3/4 + 1/2 + 1/4
=( 3+ 2+ 1)/4
= 6/4
= 3/2 Answer
Hopefully ,It be helpful for you !
regards - Atul Singh vairagi
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