MHT CET2007MathematicsLimits
The value of _ x 0 ( x)- x x⁴ is equal to
Options
- A1 / 5
- B1 / 6
- C1 / 4
- D1 / 2
Correct answer
B. 1 / 6
Step-by-step solution
array l _ x 0 ( x)- x x⁴ = _ x 0 2 ( x+ x 2 ) ( x- x 2 ) x⁴ =2 _ x 0 [ ( x+ x 2 ) ( x+ x 2 ) ( x- x 2 ) ( x- x 2 ) . . ( x+ x 2 x ) ( x- x 2 x³ ) ] =2 _ x 0 [ ( x+ x 2 ) x+ x 2 ( x- x 2 ) x- x 2 . = _ x 0 x- x x³ = _ x 0 x- (x- x³ 3 ! + x⁵ 5 ! - ) x³ = _ x 0 ( 1 3 ! - x² 5 ! + )= 1 6 array