Answer to Question #136486 in Trigonometry for Ojugbele Daniel

Question #136486

show that cosx - cos^3 x over sinx is equal to sinxcosx

Expert's answer

"=cosx\/sinx - cos ^3x\/sinx" "=1\/tanx-cos^2 x\/tanx"

"=(1-cos^2x)\/tanx"

"=sin^2x\/tanx"

"=sin^2x\/(sinx\/cosx)"

"=sinxcosx"

Learn more about our help with Assignments: Trigonometry

Comments

No comments. Be the first!

Leave a comment

Related Questions

1. Explain why the polar distance of a great circle is exactly 90°?
2. The two sides of a spherical triangle are 37° and 75°, respectively. Explain why the third side sh
3. Find the arc length of the great circle on a sphere of radius 3000 miles subtended by a central angl
4. What should be the third side and included angle of a spherical triangle if the two sides measure 90
5. The two sides of a spherical triangle are 37° and 75°, respectively. Explain why the third side sh
6. What should be the third side and included angle of a spherical triangle if the two sides measure 90
7. Explain why the polar distance of a great circle is exactly 90°? __________________________________