math
Ó mean summ
math
( a + b + c) ^ n = Ó n ! / ( i! j! k! ) a ^ i b ^ j c ^ k where i + j + k = n So exponent of x ^ 3 y ^ 2 z ^ 2 = 7! / (3! 2! 2!) = 5040 / ( 6 * 2 * 2 ) = 5040 / 24 = 210
Please help me...Please....Math
x1/2 = [ - b + OR - sqrt ( b ^ 2 - 4 a c ) ] / 2a
Please help me...Please....Math
Diiscriminant : D = b ^ 2 - 4 a c in this case : a = - 1 b = - 1 c = 30 D = ( - 1 ) ^ 2 - 4 * ( - 1 ) * 30 D = 1 + 4 * 30 = 1 + 120 = 121 x1/2 = - b + OR - sqrt ( b ^ 2 - 4 a c ) / 2a in this case : x1 = - b + sqrt( b ^ 2 - 4 a c ) / 2a x1 = [ - ( - 1 ) + sqrt ( 121 ) ] / [ 2 ...
triple digit digit product
269 2 * 6 * 9 = 108
math
3 sqrt ( 8 ) * 2 sqrt ( 5 ) = 3 * 2 * sqrt ( 8 ) * sqrt ( 5 ) = 6 sqrt ( 8 * 5 ) = 6 sqrt ( 40 ) = 6 sqrt ( 4 * 10 ) = 6 sqrt ( 4 ) * sqrt ( 10 ) = 6 * 2 * sqrt ( 10 ) = 12 sqrt ( 10 )
Math
( 42 / 24 ) * 50.88 = 1.75 * 50.88 = 89.04 $
Pre-Calculus
12. 3 / 12 = 3 / ( 3 * 4 ) = 1 / 4 5 / 15 = 5 / ( 5 * 3 ) = 1 / 3 ( x + 3 / 12 ) / ( 4 x - 5 / 15 ) = ( x + 1 / 4 ) / ( 4 x - 1 / 3 ) = ( 4 x / 4 + 1 / 4 ) / ( 4 x * 3 / 3 - 1 / 3 ) = [ ( 4 x + 1 ) / 4 ] / [ ( 12 x - 1 ) / 3 ] = ( 4 x + 1 ) * 3 / [ 4 * ( 12 x - 1 ) ] = ( 3 / 4...
precal
- 4 ln ( x + 1 ) + 9 ln ( x ) = 9 ln ( x ) - 4 ln ( x + 1 ) ________________________________________ n * ln ( a ^ n ) ln ( a ) - ln ( b ) = ln ( a / b ) ________________________________________ 9 ln ( x ) - 4 ln ( x + 1 ) = ln [ x ^ 9 / ( x + 1 ) ^ 4 ]
Math
( 9 / 11 ) * 66 = 594 / 11 = 54 OR In 11 matches team have 9 won. 66 = 6 * 11 Tim will hawe 6 * 9 = 54 won
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