Question

Please tell me all answers ​

Answer 1

Answer:

ans is 78..

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Answer 2

Answer:

The answer are as follow:

(i)  $(-2/3)^{-30}$

(ii) $(11 / 13)^{14}$

Step-by-step explanation:

(i) We have given in the first question that,

            $(-2 / 3)^{10}$ *     $(-2 / 3)^{-15}$  /     $(-2 / 3)^{25}$

According to BODMAS rule, we will first divide them;

Hence,        $(-2 / 3)^{10}$ *    $(-2 / 3)^{-15 - 25}$              

                    $(-2 / 3)^{10}$ *    $(-2 / 3)^{-40}$  

Then, we multiply,

                      $(-2 / 3)^{10 + (-40)}$;

                       $(-2 / 3)^{-30}$

Hence, we got our answer.

That's all for question (i).

Now,

       (ii) $(11 / 13)^{7} / (13 / 11)^{7}$

here, we can write it as,

          $(11 / 13)^{7}$  / ( $13^{7} / 11^{7}$)

           $(11 / 13)^{7}$ * ( $11^{7} / 13^{7}$)

             $(11 / 13)^{7}$ *  $(11 / 13)^7$

Now, power get summed up,

Hence we get,

                        $(11 / 13)^{7+7}$

                         $(11 / 13)^{14}$

Hence, wee got our answer.

That's all.