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प्रश्न
If `(kx)/((x + 4)(2x - 1)) = 4/(x + 4) + 1/(2x - 1)` then k is equal to:
विकल्प
9
11
5
7
उत्तर
9
Explanation:
kx = 4(2x - 1) + x + 4
kx = 8x - 4 + x + 4
kx = 9x
k = 9
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