Q. Write the expression as a single power of 9.(9−3)(912)=
Apply Law of Exponents: Apply the law of exponents for multiplying powers with the same base.According to the law of exponents, am⋅an=am+n when multiplying two exponents with the same base.Here, we have 9−3⋅912, so we add the exponents: −3+12.
Add Exponents: Perform the addition of the exponents.Calculating the sum of the exponents gives us −3+12=9.
Apply to Base: Apply the sum of the exponents to the base.Now we have 99, which is the simplified form of the original expression.
More problems from Find trigonometric ratios using reference angles