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JALAJ RAWAT

· started a discussion

· 1 Months ago

SOLUTION (Question: 105653.0 )

SIR...can you pls provide complete solution of this question...

Question:
What will come in place of question mark (?) in the following question?

\(\cfrac{(3.572)^3+(2.428)^3}{(3.572)^2-(3.572)×(2.428)+(2.428)^2}\)           = ?
Options:
A) 1.144
B) 4
C) 5
D) 6
E) None of these 
Solution:
Ans: (d)


= 3.572+ 2.428 = 6

Talented Boy

· commented

· 1 Months ago

apply the formula: a^3+b^3=(a+b)(a^2-ab+b^2)

take, a=3.572 and b=2.428
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