Grade 12th passTrigonometry
if u=(a2cos2x+b2cos2x)1/2then find minimum value of u2
if u=(a2cos2x+b2cos2x)1/2
then find minimum value of u2
2 Answers
Aditya Gupta
u^2=cos^2x(a^2+b^2). now minimum value of cos^2x is zero so the minimum value of u^2 is zero as well and occurs when x=pi/2.
Saurabh Koranglekar
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