Question

Please solve the 7th question. The second, third and fourth part. I will mark you as brainliest if you give the correct answer

Answer 1

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1st question)

➡19

2nd question)

➡1/6

3rd question)

➡4

$\boxed{\textbf{\large{Step by step explanation}}}$

[ Note : refer the attachments for the solutions of the given problems ]

◾In the given problems , we use to do cancellation of terms, which have the power n .

◾Taking terms as a common on numerator and denominator side and then cancelled it . [we must use identities ]

◾Then the remaining terms are fixed in the values, which we can evaluate by using identities.

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◾for such a type of problems ,we need to use certain identities given below.

◾( m / n) ^2 =( m )^2 / (n) ^2

◾ √( m / n) = √m / √n

◾( a ^(m )^(n)) = ( a^ ( m ✖ n))

◾( a ^( - m)) = 1 /( a ^(m) )

◾( a ^m ✖ a^n ) = ( a ^( m + n))

◾( 1 ) ^(z) = (1)

◾(a^(m)) /(a^(n)) = a^(m - n)

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Answer 2

Answer: 19 , 1/6 , 4 are your answers

Step-by-step explanation: