Question

(sin80+cos10)(sin80-cos10)=?

Answer 1

sin^2 80 - cos^2 10

sin ^2 ( 90 - 10 ) - cos^2 10

cos ^2 10 - cos ^2 10

0

Answer 2

here is ur Answer ✍️✍️


it can be done easily with the help of identities and simple trignometry.


refer to attachment.


HOPE IT HELPS U ✌️✌️✌️