What is expand cos(pi(0.5+h)) ?

The solution to expand cos(pi(0.5+h)) is -sin(pih)

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expand cos(pi(0.5+h))

expand

cos (π (0.5 + h))

- sin (πh)

Solution steps

cos (π (0.5 + h))

Expand

π (0.5 + h) : 1.57079 \dots + πh

= cos (1.57079 \dots + πh)

Rewrite using trig identities

= - sin (πh)

- \frac{5}{( x + 2 ) ( x - 3 )}

(12 x + 4 y = 15, 2) (32 x + 12 y = 420)

2 e^{- i (t + \frac{π}{4})}

7 (x + 1 = 2 x + 57)

20 + 8 (q - 11 = - 12)

What is expand cos(pi(0.5+h)) ?
The solution to expand cos(pi(0.5+h)) is -sin(pih)