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Question : 63 of 160
Marks:
+1,
-0
Solution:
f is continuous at
x=0 ∴‌‌f(x)=f(0) ⇒| 72x−9x−8x+1 |
| √2−√1+cos‌x |
=k‌log‌2‌log‌3 ⇒k‌log‌2.log‌3 =| (9x−1)(8x−1)(√2+√1+cos‌x) |
| 2−(1+cos‌x) |
=log‌9.log‌8‌.2(√2+√2) =2‌log‌3‌.3‌log‌2‌.4‌√2 ⇒k‌log‌3.log‌2=24√2‌log‌3.log‌2 ⇒k=24√2
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