Q2Short answer
sin α 1 − cos α + sin α 2. If = y , then prove that is also equal to y. 1 + cos α + sin α 1 + sin α 1 − cos α + sin α 1 − cos α + sin α 1 + cos α + sin α Hint :Express = . 1 + sin α 1 + sin α 1 + cos α + sin α m+n
sin α 1 − cos α + sin α 2. If = y , then prove that is also equal to y. 1 + cos α + sin α 1 + sin α 1 − cos α + sin α 1 − cos α + sin α 1 + cos α + sin α Hint :Express = . 1 + sin α 1 + sin α 1 + cos α + sin α m+n