What is expand (cos(x)+1)^2+sin^2(x) ?

The solution to expand (cos(x)+1)^2+sin^2(x) is 2cos(x)+2

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expand (cos(x)+1)^2+sin^2(x)

expand

(cos (x) + 1)^{2} + sin^{2} (x)

2 cos (x) + 2

Solution steps

(cos (x) + 1)^{2} + sin^{2} (x)

Expand

(cos (x) + 1)^{2} : cos^{2} (x) + 2 cos (x) + 1

= cos^{2} (x) + 2 cos (x) + 1 + sin^{2} (x)

Rewrite using trig identities

= 2 cos (x) + 2

\frac{s ^{3} + 4 s ^{2} + s + 5}{( s ^{2} + 1 ) ( s ^{2} + 4 s + 8 )}

(1 + x) (- e^{- x})

(r cos (θ) + r sin (θ))^{2}

(v + \frac{1}{2}) (v - \frac{1}{2})

What is expand (cos(x)+1)^2+sin^2(x) ?
The solution to expand (cos(x)+1)^2+sin^2(x) is 2cos(x)+2