Question

Sin 30° - 2 tan 45° + cos² 60°

Answer 1

Answer:

-5/4

Step-by-step explanation:

sin 30-2 tan 45 +cos^2 60

1/2-2*1+(1/2)^2

1/2-2+1/4

(2-8+1)/4

(-6+1)/4

-5/4

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