Published by:
CGP EDU Academic Team
Published on: August 13, 2026
If the coefficient of a 7 b 8 in the expansion of (a + 2b + 4ab) 10 , is K.2 16 then K is equal to .
Text Solution
Verified by ExpertsThe correct answer is:
315
(315)
α + β + γ = 10 (1)
+ γ = 7 (2)
β + γ = 8 (3)
(2) + (3) − (1) ⇒ γ = 5
= 2
β = 3
so coefficients 
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