1.

proof that 4cos60 +4tan sguar 45-sin squar 30=4 (3/4)

Answer»

4 cos 60 + 4 tan²45 - sin²30

= 4*(1/2) + 4(1) - (1/2)²

= 2 + 4 - 1/4

= 6-1/4

= 24-1/4

= 23/4



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