Evaluate using identities (91)^3
Answers
Answered by
1
Answer:
Take a=90 and b=1
Step-by-step explanation:
we know that
(a+b)³=a³+b³+3ab(a+b)now solve it
Answered by
1
Answer:
182
Step-by-step explanation:
91 × 2 = (1+90)(1+1)
=1 square +(90+1) + 90×1
1+1×91+1
2×91
=182
Similar questions