Question

Help me guys it's urgent....
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Answer 1

Hope it helpful for you

Answer 2

Answer:

solved

Step-by-step explanation:

q23.

√3 + √2 ÷ 3√2 - 2√3 = (√3 + √2) ( 3√2+ 2√3) ÷ ( 3√2 - 2√3)( 3√2+ 2√3)

= 12 + 5√6 ÷ 6 = 2 + (5/6)√6 = a - b√6

so

a = 2 , b = -5/6

q24.

x² + 1/x² = 83

x² + 1/x² -2  = 81

( x - 1/x )² = 9²

( x - 1/x ) = ±9

x³ - 1/x³ = ( x - 1/x )( x² + 1/x² + 1  ) =  ±9x84 = ± 756

q25.

this can be proved by the 5th Euclidian axiom :

Fifth Axiom

Given a line L and a point P not on L, there is exactly one line through P that is  

Two or more lines are parallel if they never intersect. They have the same slope and the distance between them is always constant.

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parallel to L.

Third Axiom

Given a point P and a distance r, you can draw a circle with centre P and radius