Visualizing Separate Graphs

Geometry Level 2

e x = sin ⁡ x \large e^x=\sin x

How many positive solutions does the equation above have?


The answer is 0.

View wiki
Sriram Radhakrishnan by Sriram Radhakrishnan , 22, India

This section requires Javascript.
You are seeing this because something didn't load right. We suggest you, (a) try refreshing the page, (b) enabling javascript if it is disabled on your browser and, finally, (c) loading the non-javascript version of this page . We're sorry about the hassle.

2 solutions

Anthony Holm
Aug 18, 2016

sinx varies between -1 and 1, e^x, where x>0, is greater than 1, and thus the two are never equal given positive x

4 Helpful 0 Interesting 0 Brilliant 0 Confused

Damn straight!

Joe Mansley - 4 years, 9 months ago

glad you mentioned positive otherwise it would have been infinite, just make their graphs since you just want a rough estimate where they intersect is the solution but they don't intersect .

0 Helpful 0 Interesting 0 Brilliant 0 Confused

Initially I didn't mention it.Later on , the report was solved .

Sriram Radhakrishnan - 4 years, 9 months ago

Log in to reply

oh i did'nt knew that , now i have seen other reports as they say the same, first i just saw the expression but did'nt see the positive written in bold letters i was scared a bit about my thinking .

A Former Brilliant Member - 4 years, 9 months ago

0 pending reports

×

Problem Loading...

Note Loading...

Set Loading...