prove that (cos8x+6 cos6x+ 13cos4x+ 8cos2x)/(cos7x+5cos5x+8cos3x) = 2cosx
simplify 2ln(k) -ln(k+t) -ln(k-t)
Krishna had a packet of chocolates. After eating the first one he gave half of what he had left to his brother. After eating anoth...
given that p is directly proportional to 1/sqrt r and p=3 when r=16, find the value of r when p=2/3
SOLVE FOR X
X= 7-3Y
X^2 - Y^2 = 39
find rank of 2*2 matrix with alll elements are 3
6778
m ...
y=sin^4 x + cos ^ 4 x^3
Solve for x
73x-1 = 21
