So, twenty hours of my life have passed. I'm never going to get them back, but I can prevent another twenty hours elapsing and that cold, hard feeling of my head hitting the desk one more time. Here's why:
Obviously. So I have to show that. My initial thinking was to convert all the terms into sin and cos, and then using a couple of trigonometric functions left me with:
Because of the sum on the right hand side of the equation, I'm not entirely sure what I should do it. I've tried various different techniques but I've ultimately not been able to get an answer. I've come close to , so that's what I've been aiming for.
Can anyone nudge me in the right direction? I've also tried converting all terms into tan variants but that has only succeeded in driving me into another brick wall.