What is expand (5+cos(θ))^2 ?

The solution to expand (5+cos(θ))^2 is 25+10cos(θ)+cos^2(θ)

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expand (5+cos(θ))^2

expand

(5 + cos (θ))^{2}

25 + 10 cos (θ) + cos^{2} (θ)

Solution steps

(5 + cos (θ))^{2}

Apply Perfect Square Formula:

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

(5 + cos (θ))^{2} = 5^{2} + 2 \cdot 5 cos (θ) + cos^{2} (θ)

= 5^{2} + 2 \cdot 5 cos (θ) + cos^{2} (θ)

Simplify

5^{2} + 2 \cdot 5 cos (θ) + cos^{2} (θ) : 25 + 10 cos (θ) + cos^{2} (θ)

= 25 + 10 cos (θ) + cos^{2} (θ)

\frac{x ^{2}}{( x + 1 ) ( x - 1 )}

\frac{x ( t - 2 )}{t}

e^{3 t} (9 - 4 t + 10 sin (\frac{t}{2}))

x^{\frac{7}{2}} - 8 x^{3} (- 3 + x)

(e^{4 x} - 2 e^{x})^{2}

What is expand (5+cos(θ))^2 ?
The solution to expand (5+cos(θ))^2 is 25+10cos(θ)+cos^2(θ)