Question

if 3 sina = 5 sinb then tan{a+b/2}/tan{a-b/2}=

Answer 1

Is the answer 4

Answer 2

yes but i am not getting it

Answer 3

If yes then method is write tan in terms of sin and cos then we get sin a+b/2 *cos a-b/2 whole dived by cos a+b/2 sina-b/2 then multiply and divide by 2 then by using transformations we write that as sina +sinb/sina-sinb use relation to get8/3/2/3=4 after sinb getting cancelled

Answer 4

thanks