" 9."y sec x-y^(2)cos x+2x=0

If y = (sinx + cosecx)^(2) + (cos x + sec x)^(2) .then the minimum value of y,AA x in R is

If x in(0,2 pi) and y in(0,2 pi), then find the number of distinct ordered pairs (x,y) satisfying the equation 9cos^(2)x+sec^(2)y-6cos x-4sec y+5=0

The solution of the differential equation cos y log(sec x+tan x)dx=cos x log(sec y+tan y)dy is (a) sec^(2)x+sec^(2)y=c(b)sec x+sec y=c(c)sec x-sec y=c(d)Non of these

If y = x ^(2)cos 3x then y _(2) at x=0 is

If y=(sin x+cos ecx)^(2)+(cos x+sec x)^(2) then the minimum value of y,AA x in R

sec^(2) y tan x dy + sec^(2) x tan y dx = 0 , " when " x =y = pi/4

[x tan ((y) / (x)) - y sec ^ (2) ((y) / (x))] dx + x sec ^ (2) ((y) / (x))] dy = 0

(sec x sec y + tan x tan y) ^ (2) - (sec x tan y + tan x sec y) ^ (2) = 1 Prove it