+91-87964 74404
FlagBACK
Question icon
Grade 12Differential Calculus

Sir i had uploded this question but no one gave its solution.kindly please provide its solution
Its answeris (-1/6 , π/3]u[5π/3 , 6)

Question image for Sir i had uploded this question but no one gave i
Profile image of Pushkar Kumar
7 Years agoGrade 12
Answers icon

1 Answer

Profile image of Sushant Kumar
7 Years ago
6+35x-6x^2>0
implies x belongs in (-1/6,6)
but cos x>=1/2
implies x<=\cos^{-1} 1/2    we reverse the inequality because \cos^{-1} is a decreasing function
 
hence we get the solution set (-1/6 , π/3]u[5π/3 , 6)

Other Related Questions on differential calculus

question mark
the diameter of a roller is 84 cm and its length is 120 cm. it takes 500 complete revolution to  move once over to level a playground. find the area of the playground in square m?
differential calculus
1 Answer Available

Last Activity: 3 Years ago

question mark
Find dy/DX when y=x^sinx+sin-1√x.
 
Please give me the solution of this problem. 
differential calculus
1 Answer Available

Last Activity: 4 Years ago

question mark
If domain of f(x) is [-1, 2], then find the domain of f([x]-x^2+4), where [ ]denotes greatest integer function.
differential calculus
1 Answer Available

Last Activity: 4 Years ago

question mark
Solve the differential equation y’’+2ty’-4y=1, y(0)=y’(0)=0.
differential calculus
1 Answer Available

Last Activity: 4 Years ago

question mark
Example 20. (i) In a AABC, find the maxima and minima of u = sin A sin B sin C
where A + B + C = T
(ii) In a plane triangle ABC, find the maximum value of cosA cosB cosC.
differential calculus
1 Answer Available

Last Activity: 4 Years ago