Question

Single Choice Let f be continuous function defined by asin 2x-bos.x > X = 26 Cos the value of a-bi

JEE/Engineering Exams

Maths

Solution

4.0 (1 ratings)

( lim _{x rightarrow pi n^{+}} a sin frac{12 x)-b cos x}{frac{pi}{2}-x} ) ( begin{aligned}=& 2 b=1 & sqrt{b}=2 end{aligned} ) ( 2 a=4+2=6 ) ( a=3 ) ( a+b=5 )