Grade 12Differential Calculus
Please help me in finding range and domain of the question attached in image
Please help me in finding range and domain of the question attached in image
1 Answer
Sushant Kumar
6+35x-6x^2>0
implies x belongs in (-1/6,6)
but cos x>=1/2
implies 
we reverse the inequality because 
is a decreasing function
hence we get the solution set (-1/6 , π/3]u[5π/3 , 6)
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