Math, asked by putul4879, 10 months ago


1-Sin Acos A
COSA ( SECA-CosecA)
×sin A- cos²A \
sin3A -cos3 A​

Answers

Answered by karannnn43
0

what to do ? write properly

Answered by tanishasahar44
1

Answer:

Step-by-step explanation:

I= (1-sinA cosA)  /      cosA (sec A-cosec A)    

 

=   (1-sin A cos A) / cos A ((1/cos A) - (1/ sin A))

             

   

I  =     (1- sinA cos A) ( sin A cos A) /  cos A (sin A -cosA )

II =    (sin² A - cos² A) / (sin³ A - cos³ A )

=       (sin A + cos A)(sin A -cos A) / (sin A + cos A)(sin² A- sin A cos A + cos² A)

=  (sin A+ cos A)( sin A -cos A) /  (sin A + cos A)(1- sin A cos A)

                           

I *II = sin A (identical terms get cancelled )

Similar questions