Question

Simplify (1 - cos 0) (1 +cose) (1 + cote).​

Answer 1

Answer:

Step-by-step explanation:

Expand the brackets using FOIL , or the method you use.

⇒(1+cosx)(1−cosx)=1−cosx+cosx−cos2x

=1−cos2x

using the identity ∣∣

∣∣¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯aasin2x+cos2x=1aa∣∣−−−−−−−−−−−−−−−−−−−−

then 1−cos2x=sin2x

Answer 2

Answer:

hey here is your answer.

Step-by-step explanation:

(1-cosx) (1+cosx) (1+cotx)

by solving the bracket, we get [cotx = cosx/sinx]

= (1-cosx+cosx-cos^2x) (1+cosx/sinx)

= (1-cos^2x) [(sinx+cosx)/sinx] [1-cos^2x = sin^2x]

= (sin^2x) [(sinx+cosx)/sinx]

= sinx ( sinx + cosx )

= sin^2x + sinx.cosx

hope it help you and please mark it as brainliest.