Q55Multiple choice
If = x + 6 , then the value of x + y is 5x − 7 4 x y
- (A)x = 3, y = 1
- (B)x = 2, y = 3
- (C)x = 2, y = 4
- (D)x = 3, y = 3 60 MATHEMATICS −1 −1 x −1 x sin ( x ) tan − cos ( x ) tan −1 1 1