What is expand (8.22cos(t)-3.69)^2 ?

The solution to expand (8.22cos(t)-3.69)^2 is 67.5684cos^2(t)-60.6636cos(t)+13.6161

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expand (8.22cos(t)-3.69)^2

expand

(8.22 cos (t) - 3.69)^{2}

67.5684 cos^{2} (t) - 60.6636 cos (t) + 13.6161

Solution steps

(8.22 cos (t) - 3.69)^{2}

Apply Perfect Square Formula:

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

(8.22 cos (t) - 3.69)^{2} = (8.22 cos (t))^{2} - 2 \cdot 8.22 cos (t) \cdot 3.69 + 3.6 9^{2}

= (8.22 cos (t))^{2} - 2 \cdot 8.22 cos (t) \cdot 3.69 + 3.6 9^{2}

Simplify

(8.22 cos (t))^{2} - 2 \cdot 8.22 cos (t) \cdot 3.69 + 3.6 9^{2} : 67.5684 cos^{2} (t) - 60.6636 cos (t) + 13.6161

= 67.5684 cos^{2} (t) - 60.6636 cos (t) + 13.6161

x (x + 25 + 5)

\frac{\frac{d ^{2}}{d x ^{2}} ( - 3 x ^{2} )}{( x ^{2} - 1 ) ^{4}}

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

(1 - \frac{x}{4})^{5}

\frac{d ^{2}}{d x ^{2}} ((y) (5 x^{2} + y^{4} - 21))

What is expand (8.22cos(t)-3.69)^2 ?
The solution to expand (8.22cos(t)-3.69)^2 is 67.5684cos^2(t)-60.6636cos(t)+13.6161