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awesome answer by rajya lakshmi
11c5 if repeated and 6c5 if not repeated
there are 9 positive integer pairs for x,r,g they are 9,0,0 8,1,1 7,2,2 6,3,3 5,4,4 4,5,5 3,6,6 2,7,7 1,8,8 respectively
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first u must bihard the basic log values 1-10 log657=log6.57.10 2 =log6.57+log10 2 u are familiar with log6 and value of log 10 2 =2
0 if n is odd [-1]^n if nis even
out of 5 horses 1 winning horse can be selected in 5C 1 ways. remaining 1 horse can be selected in 4C 1 ways. Out of 5 horses 2 horses other than the winning horse can be selected in 4c 2 ways.The...
A algebraic polynomial equation of degree 2 is called a Quadratic equation. ax 2 +bx+c=0, a is not equal to zero. It has 2 roots.
hey its easy factorise the denominator as ( r 2 -r+1)(r 2 +r+1). now see the diff. of these terms is 2r so you can split the summation.and solve it