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 )
find the minimum value of the expression 1/(cos2(pi/4+x)+sin2(pi/4-x))
we can write cos^2(pi/4+x)= cos^2(pi/2-(pi/4-x)= sin^2(pi/4-x)1/(2sin^2(pi/4-x)the value will be minimum when sin^2(pi/4-x) will be maximum that issin^2(pi/4-x)=1so the minimum value is ½ [ans]
Find solution of question on doubt solving app Instasolv
Post Question
Dear , Preparing for entrance exams? Register yourself for the free demo class from askiitians.
points won -