If `sinalphacosbeta=-1/2` then find the range of values of `cosalphasinbeta`

If sin^4alpha+cos^4beta+2=4sinalphacosbeta,0lt=alpha,betalt=pi/2 then find the value of (sinalpha+cosbeta)dot

Find the range of f(x)=1/(2cosx-1)

find the range of f(x)=(1)/(1+4cosx)

Find the value of (49)^(1/2)

If x in [1,2] , then find the range of f(x)=tanx

If both the roots of a x^2+a x+1=0 are less than 1, then find the exhaustive range of values of adot

Find the range of f(x)=1/(2abscosx-3)

If in triangle A B C ,/_C=45^0 then find the range of the values of sin^2A+sin^2Bdot

Given that the 4th term in the expansion of [2+(3//8x)]^(10) has the maximum numerical value. Then find the range of value of xdot

Find the range of f(x)=cos^2x+sec^2x .