Q. (21)−2+30What is the value of the given expression?Choose 1 answer:(A) 43(B) 45(C) 4(D) 5
Evaluate first term: Evaluate the first term of the expression (21)−2.A negative exponent means that we take the reciprocal of the base and then raise it to the positive of that exponent. So, (21)−2 becomes (12)2.Calculation: (12)2=22=4.
Evaluate second term: Evaluate the second term of the expression 30.Any non-zero number raised to the power of 0 is 1.Calculation: 30=1.
Add results: Add the results from Step 1 and Step 2.We found that (21)−2=4 and 30=1.Calculation: 4+1=5.
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