Question

Find value of a and b √7-1/√7+1=a+b√7

Answer 1

Step-by-step explanation:

\sf\orange{ ★ Answer ★ }★Answer★

multiplicative inverse of 5

➳ \tt \frac{1}{5}➳

5

1

Proof -

\tt \frac{5}{1}

1

5

× \tt \frac{1}{5}

5

1

= 1

__________________________________________

\sf\blue{ Let's \: understand \: it :- }Let

′

sunderstandit:−

For every non - zero rational number \tt \frac{a}{b}

b

a

there exist a rational number \tt \frac{b}{a}

a

b

such that \tt \frac{a}{b}

b

a

× \tt \frac{b}{a}

a

b

= \tt \frac{b}{a}

a

b

× \tt \frac{a}{b}

b

a

= 1 ,

★ \tt \frac{b}{a}

a

b

is called the reciprocal or multiplicative inverse of \tt \frac{a}{b}

b

a

★ \tt \frac{a}{b}

b

a

is called the reciprocal or multiplicative inverse of \tt \frac{b}{a}

a

b

\sf\red{ EXAMPLE :- }EXAMPLE:−

multiplicative inverse of \tt \frac{3}{4}

4

3

➳ \tt \frac{4}{3}

3

4