Simplify

Asked by apurba.03.dav | 13th Apr, 2020, 12:05: PM

Expert Answer:

begin mathsize 16px style fraction numerator 3 to the power of straight n plus 2 end exponent minus space 3 to the power of straight n plus 1 end exponent over denominator 7.3 to the power of straight n plus 1 end exponent plus space 5.3 to the power of straight n end fraction
equals fraction numerator 3 to the power of straight n open parentheses 3 squared minus space 3 to the power of 1 close parentheses over denominator 3 to the power of straight n open parentheses 7.3 to the power of 1 plus space 5 close parentheses end fraction
equals fraction numerator 9 minus 3 over denominator 21 plus 5 end fraction
equals 6 over 26 end style

Answered by Yasmeen Khan | 13th Apr, 2020, 10:01: PM