Math, asked by bhargavidegala2005, 2 months ago

cos48sin18-sin48cos18=-1/2

Answers

Answered by acerttv2020

1

Answer:

LHS

cos48sin18-sin48cos18

=-(sin48cos18-cos48sin18)

using formula of sin (A-B)

= -{sin (48-18)}

= - sin 30

= - 1/2

thus proved.

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