can you give the ans?
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answer is 27 ways. I cannot give step by step solution because it is too big but i am sure of my answer
santoshgwaila:
no ans is 18
let me try again
aha sorry it is 18 i mistakely added 5 twice
sorry
how it came could you plz show me the answer??
look the number of 4 lettered combinations will have the coefficient x^4
in the big way writing of (1+x+x^2)^2×(1+x)^3
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1. EG
OPPOSITE
2. EG
only 2 combination
OPPOSITE
2. EG
only 2 combination
i didn't understand.
he gave wrong answer
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