Trig troubles

12

Hello
I'm struggling with Trig right now, especially with questions like this - Prove that there are no real solutions to the equation
30 sec^2 x 2 cos x = 7( sec x + 1).
There are just so many routes to go down.. any advice?

Reply 1

mqb2766

21

Original post

by mitostudent

Hello
I'm struggling with Trig right now, especially with questions like this - Prove that there are no real solutions to the equation
30 sec^2 x 2 cos x = 7( sec x + 1).
There are just so many routes to go down.. any advice?

Assuming your formatting is ok, just use the basic sec-cos relationship and it should be straightforward?

Reply 2

Eimmanuel

Study Forum Helper

15

Original post

by mitostudent

Hello
I'm struggling with Trig right now, especially with questions like this - Prove that there are no real solutions to the equation
30 sec^2 x 2 cos x = 7( sec x + 1).
There are just so many routes to go down.. any advice?

I doubt the equation is correct because the solution(s) has/have real roots.

The question seems more like a thread we had seen in this forum quite some time ago.

Trig troubles

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