What is expand (r-rcos(t))^2 ?

The solution to expand (r-rcos(t))^2 is r^2-2r^2cos(t)+r^2cos^2(t)

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

expand (r-rcos(t))^2

expand

(r - r cos (t))^{2}

r^{2} - 2 r^{2} cos (t) + r^{2} cos^{2} (t)

Solution steps

(r - r cos (t))^{2}

Apply Perfect Square Formula:

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

(r - r cos (t))^{2} = r^{2} - 2 rr cos (t) + (r cos (t))^{2}

= r^{2} - 2 rr cos (t) + (r cos (t))^{2}

Simplify

r^{2} - 2 rr cos (t) + (r cos (t))^{2} : r^{2} - 2 r^{2} cos (t) + r^{2} cos^{2} (t)

= r^{2} - 2 r^{2} cos (t) + r^{2} cos^{2} (t)

- 0.00676 y + 35 (- 0.00077 e^{(- 0.00077 x)} x + 0.8 9^{(\frac{x}{150})})

(3 - x^{2} + 5) (3 + x^{2} + 5)

\frac{( s - 3 ) ( s ^{2} - 6 s + 17 )}{( s ^{2} - 6 s - 13 ) ^{2}}

5 (10 + 6)

(x^{2} y^{2} - 1) d y + 2 x y^{3} d x

What is expand (r-rcos(t))^2 ?
The solution to expand (r-rcos(t))^2 is r^2-2r^2cos(t)+r^2cos^2(t)