Question

Evaluate :
2 tan^245°+
cos²6o - sin^2 3 0°

Answer 1

Answer:

tan 45=1

cos 60 =1/2

sin 30=1/2

2tan^45 =2

cos^2 60 = 1/4

sin^2 30=1/4

2+1/4-1/4 =2

answer is 2

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