Question

Find 2 t value of 2 sin 30°- cos 180°+1 sin 270°=} 3​

Answer 1

Answer:

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Step-by-step explanation:

Sin( -270)= sin (360-270) =sin 90 =1

Cos(-180) = cos(360-180)= cos180 =-1

So, 1 × -1=-1

Answer: sin (-270) cos(-180)= -1