Math, asked by samyuktha200420, 1 year ago

cos 2a=2cos2a-1 solve it

Answers

Answered by MarkAntony

0

9.99 is the ans for thisokay

Answered by Anonymous

4

cos^2A=cos^2A-sin^2A

= cos^2A-(1-cos2^A)

= cos^2A-1+cos^2A

=2cos^2A-1 .. RHS

... hope it's helpful...

samyuktha200420: Tq

Anonymous: your welcome..,:-)

Previous Question

Next Question

Similar questions

Math, 6 months ago

give the alternative proof...

Math, 6 months ago

For the equation 5y = 2 express it in form of linear equation. (A) x + 5y = 2 (B) 0: x + 5y - 2 = 0 (C) x + 5y - 2 = 0 (D) 0: x + 5y = -2.

Environmental Sciences, 6 months ago

Name the brazilian football player to become the second highest scorer.

Social Sciences, 1 year ago

which form of transport is not availble in palampur ...

Hindi, 1 year ago

a short essay on dharmavir bharti in hindi...

Social Sciences, 1 year ago

what was the Global influence of Russian Revolution...

Physics, 1 year ago

g....Ko negative le yaa positive plz tell me ab wo graph wala tareeka mat btana just btana ki jab object upper ja ra ho ....Aur jab neeche aa ra hoo tab g ka sign kya lete hai ...Bas....

Physics, 1 year ago

what is Pascal's write the relationship between Pascal and the Newton per metre square...