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(21)/(25)" and "(18)/(20)...

(21)/(25)" and "(18)/(20)

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Find the difference of (21)/(25)\ a n d(18)/(20) (ii) 3 3/(10)\ a n d\ 2 7/(15)

Find the difference of (21)/(25)\ a n d(18)/(20) (ii) 3 3/(10)\ a n d\ 2 7/(15)

Subtract: (21)/(25) from (18)/(20)

Subtract: (21)/(25)\ from\ (18)/(20)

Evaluate the following : (i) 1+.^(20)C_(1)+^(20)C_(2)+^(20)C_(3)+....+^(20)C_(19)+^(20)C_(20) (ii) ^(10)C_(1)+^(10)C_(2)+^(10)C_(3)+.....+^(10)C_(9) (iii)^(25)C_(1)+^(25)C_(3)+^(25)C_(5)+.....+^(25)C_(25) (iv) ^(18)C_(2)+^(18)C_(4)+^(18)C_(4)+^(18)C_(6)+....+^(18)C_(18)

Evaluate the following : (i) 1+.^(20)C_(1)+^(20)C_(2)+^(20)C_(3)+....+^(20)C_(19)+^(20)C_(20) (ii) ^(10)C_(1)+^(10)C_(2)+^(10)C_(3)+.....+^(10)C_(9) (iii)^(25)C_(1)+^(25)C_(3)+^(25)C_(5)+.....+^(25)C_(25) (iv) ^(18)C_(2)+^(18)C_(4)+^(18)C_(4)+^(18)C_(6)+....+^(18)C_(18)

Sum of the squares of the length of the tangents from the points (18, 18), (10, 20) and (21, 21) to the circle x^(2) + y^(2) =25 is equal to ________ .

Sum of the squares of the length of the tangents from the points (18, 18), (10, 20) and (21, 21) to the circle x^(2) + y^(2) =25 is equal to ________ .

Find the sum of 25 + (-21) + (-20) + (+17) + (-1)