Question

Hey pls answer the above question,,,,in the pic

Answer 1

Abhe.. itna Easy. ..

iska. . approach . . (main point). hai..

${a}^{3} - {b}^{3} \: \: \: \: \: \: \:$

$(a - b) \: ( {a}^{2} + ab + {b}^{2} ) \: \: \\ expansion \: hai \: \:$

$( - { \cos( \alpha ) }^{3} + { \sin( \alpha ) }^{3} ) \div \sin( \alpha ) - \cos( \alpha )$

Answer 2

hope u understand please mark this as brainliest