Falling Behind in Studies? Join Our Performance Improvement Batch. Enroll For Free
One of our academic counsellors will contact you within 1 working day.
Click to Chat
1800-1023-196
+91-120-4616500
CART 0
Use Coupon: CART20 and get 20% off on all online Study Material
Welcome User
OR
LOGIN
Complete Your Registration (Step 2 of 2 )
show that the sum of the roots of the equation, x+1= 2 log 2 ( 2 x +3) – 2 log 4 (1980 – 2 -x ) is log 2 11.
x+1= 2 log2( 2x+3) – 2 log4(1980 – 2-x )Can be written as:Now,x+1 = log2( 2x+3)^2 – log2(1980 – 2-x )x+1 = log2( (2x+3)^2) /(1980-2^x)) (2x+3)^2) /(1980-2^x) = 2^(x+1) (2x+3)^2 = (1980-2^x)*2^x.2take 2^x = t and solve the expression.
Post Question
Dear , Preparing for entrance exams? Register yourself for the free demo class from askiitians.
points won -