I F space 3 C O S theta minus 4 S I N theta equals 2 C O S theta plus S I N theta F I N D minus space S I N squared theta plus T A N theta

Asked by Sanmit Ratnaparkhi | 12th Aug, 2014, 06:45: PM

Expert Answer:

G i v e n space 3 C o s space theta space minus space 4 space S i n space theta space equals space 2 space C o s space theta space plus thin space S i n space theta rightwards double arrow space C o s space theta equals 5 S i n space theta rightwards double arrow T a n space theta equals 1 fifth  I f space T a n space equals space 1 fifth comma space t h e n space S i n space theta equals fraction numerator 1 over denominator square root of 26 end fraction comma space C o s space theta equals fraction numerator 5 over denominator square root of 26 end fraction  therefore minus S i n squared space theta space plus space T a n space theta space equals space minus 1 over 26 plus 1 fifth equals 21 over 130

Answered by Dharma Teja | 13th Aug, 2014, 07:38: AM