Flag IIT JEE Entrance Exam> (1+cost) (1+sint) =5/4 then (1-cost) (1-s...
question mark

(1+cost) (1+sint) =5/4 then (1-cost) (1-sint) =

NARESH , 10 Years ago
Grade 11
anser 1 Answers
Yash Jain

Last Activity: 10 Years ago

The answers I got are 0.08772 and 6.41227
See, what I did is, I took the value of req. exp as x
Then I multiplied both the eq. to get the value of Sin2t = sqrt(5x)
Then I simplified the second eq. (1-Cost)(1-Sint) = x
I got, x = ¾ + Sin2x = ¾ + sqrt(5x)
So on solving the eq., x = 0.08772 and 6.41227
But I guess the second value is not possible for the given equation.
So, the only answer is 0.08772

 

Provide a better Answer & Earn Cool Goodies

star
LIVE ONLINE CLASSES

Prepraring for the competition made easy just by live online class.

tv

Full Live Access

material

Study Material

removal

Live Doubts Solving

assignment

Daily Class Assignments


Ask a Doubt

Get your questions answered by the expert for free