Question

Please this is urgent. I appreciate if you help me ^^

Answer 1

Answer:

(a). - 2 , (b). - 1

Step-by-step explanation:

Answer 2

Answer:

Step-by-step explanation:

a)5¹⁰ ÷ 5⁸ = (1/5)ⁿ           and    b)(-2/3)⁴÷(-2/3)³=(-3/2)ⁿ

=> 5¹⁰⁻⁸=5⁻ⁿ                            =>(-2/3)⁴⁻³=(-3/2)ⁿ

=> 5²=5⁻ⁿ                                => -2/3¹= -2/3⁻ⁿ

=> 2= -n                                   => 1= -n

=> n= -2                                   => n= -1

      hope it helps mark as brilliant pls pls pls pls.