7. Simplify and write in exponential form of 5² × 5⁷ ×5¹²
(a) 5³
(b) 5⁷
(c)5²
(d) none of these
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Answer:
(d) none of these
Step-by-step explanation:
5² x 5⁷ x 5¹²
= 5⁽²⁺⁷⁺¹²⁾
=5²¹
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