What is expand (cos(θ)+1)^2 ?

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

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expand (cos(θ)+1)^2

expand

(cos (θ) + 1)^{2}

cos^{2} (θ) + 2 cos (θ) + 1

Solution steps

(cos (θ) + 1)^{2}

Apply Perfect Square Formula:

(a + b)^{2} = a^{2} + 2 ab + b^{2}

(cos (θ) + 1)^{2} = cos^{2} (θ) + 2 cos (θ) \cdot 1 + 1^{2}

= cos^{2} (θ) + 2 cos (θ) \cdot 1 + 1^{2}

Simplify

cos^{2} (θ) + 2 cos (θ) \cdot 1 + 1^{2} : cos^{2} (θ) + 2 cos (θ) + 1

= cos^{2} (θ) + 2 cos (θ) + 1

(x + i y)^{3} - 2 (x + i y)

(37 x - 3) (27 x + 2)

lo g_{10} (ab)

- \frac{( 2 x - 5 ) x ^{- 11 x + 32}}{5 ( x - 6 )}

(x - 3) y^{''} (x) + 3 y^{'} (x) + 5 y

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