If `alpha+beta=90^0` , find the maximum and minimum values of `sinalphasinbetadot`

If alpha+beta=90^(@) ,find the maximum and minimum values of sin alpha sin beta

If alpha+beta=90^(0) ,then the minimum and maximum values of cos alpha*cos beta are (A) -1/3 and 1/3 (B) -1 and 1 (C) -1/4 and 1/4 (D) -1/2 and 1/2

If Z+alpha|Z-1|+2i=0 , then find the sum of maximum and minimum values of alpha .( alpha in R )

The minimum values of (x-alpha)(x-beta) is

The minimum value of (x-alpha)(x-beta) is

If alpha+beta=90^(0) ,show that the maximum value of cos alpha.cos beta is (1)/(2)

If alpha+beta=90^@ , show that the maximum value of cos alpha cos beta is (1)/(2)

If alpha and beta are the real roots of the equation x^(2)-(k-2)x+(k^(2)+3k+5)=0,(k in R) Then the maximum and minimum values of alpha^(2)+beta^(2)

If alpha+beta=90^(@),alpha=2beta , then find the value of cos^(2)alpha+sin^(2)beta .