cgl 2013 reexam

romeybansal · July 14, 2014, 5:40pm

(sin@ + cos@)/ (sin@-cos@) = 3 then sin^4@ - cos^4@ = ??

romeybansal · July 14, 2014, 5:41pm

(sin@ + cos@)/ (sin@-cos@) = 3 then sin^4@ - cos^4@ = ??