jontyjashan
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Prove
1+1=2
using trigonometric functions
1+1=2
using trigonometric functions
Cyosis said:Bit of an odd requirement, but I guess if you're allowed to use trig identities you can do it. The problem is though can we derive those identities without using simple addition in the first place, therefore do it without circular reasoning.
What is the purpose of this exercise, are you studying trigonometric identities? If this is an exercise to test your knowledge of trigonometry you could for example use:
<br /> \cos x +\cos y=\cos((x+y)/2)\cos((x-y)/2)<br />
mma said:This proves 1 + 1 = 1
:-)
jontyjashan said:how this proves 1+1=2
give detail