If tanâ¡Î¸, 2tanâ¡Î¸+2, 3tanâ¡Î¸+3 are in G.P., then the value of 7â5cotâ¡Î¸9â4sec2â¡Î¸â1 is
see full answer
Your Exam Success, Personally Taken Care Of
1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.
An Intiative by Sri Chaitanya
a
125
b
â 3328
c
33100
d
1213
answer is C.
(Unlock A.I Detailed Solution for FREE)
Best Courses for You
JEE
NEET
Foundation JEE
Foundation NEET
CBSE
Detailed Solution
tanâ¡Î¸(3tanâ¡Î¸+3)=(2+2tanâ¡Î¸)2â(1+tanâ¡Î¸)(4+tanâ¡Î¸)=0âtanâ¡Î¸=â4 as tanâ¡Î¸â â1 So 7â5cotâ¡Î¸9â4sec2â¡Î¸â1=7+5/49+16=33100