find the value of (3⁰+4-¹)×2²
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(3⁰+4⁻¹)x2²
= (1+1/4)x2². [∵ a⁻ᵐ =1/aᵐ]
= (4+1/4) x 2²
=5/4×2²
=5/2²x2²
= 5×2²⁻² [∵ aᵐ÷aⁿ=aᵐ⁻ⁿ]
= 5×2⁰
= 5×1
= 5. [∵ a⁰=1]
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