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Grade 1110 grade maths

If 3cos theta =5sin theta then find the values of 5sin theta-2sec³theta +2cos theta /5sin theta +sec³ theta -2 cos theta

Profile image of Nandhitha
8 Years agoGrade 11
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1 Answer

Profile image of Arun
8 Years ago
 
Dear student
tan theta = 3/5
Cos theta = 5/ sqrt(34)
sin theta = 3/ sqrt(34)
 
Hence expressionn becomes= 
= 5 * 3/sqrt(34) - 2*34 *sqrt(34)/125 + (2/5)*(3/5) + 2*34*sqrt(34)/125 - 2*5/sqrt(34)
 
Now solve this
 
Hope it helps.
 
Regards
Arun (askIITians forum expert)