यदि ` y = cos theta + sin theta ` तथा ` |{:(1+y,1-y,1-y),(1-y,1+y,1-y),(1-y,1-y,1+y):}|=0` ,तब
y का मान होगा

If y=sintheta+sqrt(3) cos theta and |(1+y, 1-y, 1-y),(1-y, 1+y, 1-y),(1-y, 1-y, 1+y)|=0 the number of solution in [0, 2pi] is (A) one (B) two (C) three (D) none of these

If y=sintheta+sqrt(3) cos theta and |(1+y, 1-y, 1-y),(1-y, 1+y, 1-y),(1-y, 1-y, 1+y)|=0 the number of solution in [0, 2pi] is (A) one (B) two (C) three (D) none of these

If y = cos theta + isin theta , then the value of y+frac{1}{y} is

The parametric form of the ellipse 4 (x +1) ^(2) + (y-1) ^(2) = 4 is a) x = cos theta -1 , y =2 sin theta -1 b) x = 2 cos theta-1 , y =2 sin theta -1 c) x = cos theta - 1, y = 2 sin theta + 1 d) x = cos theta +1, y =2 sin theta +1

(y + 1) (2y-1) - (3y-1) (y + 2)

If (x)/(a) cos theta + (y)/(b) sin theta = 1 , (x)/(a) sin theta - (y)/(b) cos theta =1 then