Question

If $\lim\limits_{x\rightarrow0}\frac{e^{ax}-\cos(bx)-\frac{cxe^{-ce}}{2}}{1-\cos(2x)}=17$ ,then 5a2 + b2 is equal to

• A. 68
• B. 64
• C. 72
• D. 76

Answer 1

Answer: (A)

68

Answer 2

The correct answer is (A) : 68