akinwunmijames26 akinwunmijames26

12-10-2020
Mathematics

contestada

prove that (Cosx-Cos³x)/Sinx=SinxCosx

Respuesta :

Azkanoor427 Azkanoor427

12-10-2020

Answer:

(Cosx-Cos³x)/Sinx=SinxCosx

Step-by-step explanation:

sin3x−cos3x

=sinxsin2x−cosxcos2x

=sinx(1−cos2x)−cosx(1−sin2x)

=sinx−sinxcos2x−cosx+cosxsin2x

=sinx−cosx+(sinx−cosx)sinxcosx

=(sinx−cosx)(1+sinxcosx

Answer Link

Otras preguntas

A 1.00 x 10^-10 M solution of chloric acid Please help me solve this to find pH and pOH

5(4z-3) =- 7(1-5x+9)

what were the Soviet Union and East allies’ concerns regarding Germany?

Which figure is an example of perpendicular lines?

5. Name one crustacean that lives in the ocean, one that lives in freshwater, and one that lives on land.

The graph of the function f(x)=5/4sin(x) is shown. What are the key features of this function? The maximum value of the function is The minimum value of the fu

The triangle shown is rotated about line m. What is the approximate base area of the resulting three- dimensional figure? Area of a circle: A = rr? m 10 cm 8 cm

Please find the answer , it is a very importatnt question

please answer this correctly and ill give a perfect rate plus heart and follow

'All factors of 70 are even numbers.'Is he correct?OresYesNoNoExplain your answer.