Question

please solve que num 9

Answer 1

Ist step:- make all the negative powers positive by taking reciprocals of the no. who are having negative powers.So,the eq. becomes:-
((7 raise to power 6)/(5 raise to power 3))raise to power 7/2.

IInd step:- take out the common power from 5 and 7 , which is 3. So, the eq. becomes (49/5) raise to power 3*(7/2).

IIIrd step:- the outer power becomes 21/2.

IVth step:- take the square root of 49 and 5 to remove 1/2 from 21/2.

The final answer becomes 7/(√5) raise to power 21.


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