Thank you for registering.

One of our academic counsellors will contact you within 1 working day.

Please check your email for login details.
MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping

Total number of solution 2 x +3 x +4 x -5 x =0 Thanks

Total number of solution 2x+3x+4x-5x=0 

Thanks

Grade:

1 Answers

Jitender Singh IIT Delhi
askIITians Faculty 158 Points
7 years ago
Ans:
f(x) = 2^{x} + 3^{x} + 4^{x} - 5^{x}
There is only one solution that lie b/w 2 & 3.
f(2) = 2^{2} + 3^{2} + 4^{2} - 5^{2}
f(2) = 4
f(3) = 2^{3} + 3^{3} + 4^{3} - 5^{3}
f(3) = -26
So both values have opposite sign, so f(x) should be zero b/w somewhere. You can see it from the graph also.
241-851_IF3.gif
Thanks & Regards
Jitender Singh
IIT Delhi
askIITians Faculty

Think You Can Provide A Better Answer ?

Provide a better Answer & Earn Cool Goodies See our forum point policy

ASK QUESTION

Get your questions answered by the expert for free