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asked ago in Mathematics by (53.5k points)

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

(A)  2

(B)  23

(C)  69

(D)  46

1 Answer

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answered ago by (20.7k points)
selected ago by
 
Best answer

Correct option (A)(B)(D)

Explanation:

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