Most Important Selected Qs for JEE AdvancedMathematicsTrigonometry

If 4+ 8- 32+ 768 =a 2 ( 11 b ) , where a and b are natural numbers then b a is divisible by

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Correct answer

D. 6

Step-by-step solution

aligned & Let 768 =32 & 16 3 =32 & = 3 2 = 6 aligned So 4+ 8- 32+32 6 = 4+ 8-8 12 = 4+4 24 = 4+4 11 24 = 4 (1+ 11 24 ) = 4.2 ^2 11 48 =2 2 11 48 So a =2, ~b =48 b a =24

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