MHT CET20249 May 2024Evening ShiftMathematicsTrigonometric EquationsActual

The number of integral values of k , for which the equation 7 x+5 x=2 k +1 has a solution, is

Options

Correct answer

B. 8

Step-by-step solution

aligned & - 7^2+5^2 (7 x+5 x) 7^2+5^2 & - 74 (7 x+5 x) 74 & -8.6 2 k +1 8.6 & -4.8 k 3.8 aligned Integral values of k are -4,-3,-2,-1,0,1,2,3 Number of integral values of k=8

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