Simplify: (sin Θ − cos Θ)2 + (sin Θ + cos Θ)2
1

2

sin2 Θ

cos2 Θ
@Gin_Ichimaru @dan815 @zuberbier120 @amistre64 @love_jessika15 @YanaSidlinskiy

Question

Simplify: (sin Θ − cos Θ)2 + (sin Θ + cos Θ)2
 1

 2

 sin2 Θ

 cos2 Θ
@Gin_Ichimaru @dan815 @zuberbier120 @amistre64 @love_jessika15 @YanaSidlinskiy

anonymous · Answer

2

anonymous · Answer

2

solomonzelman · Answer

(sin Θ − cos Θ)² + (sin Θ + cos Θ)²

applying ` (a-b)²=a²-2ab+b² `   and   ` (a+b)²=a²+2ab+b²`  

sin²Θ + 2sinΘcosΘ− cos Θ² + sin²Θ - 2sinΘcosΘ− cos Θ²

2sin²Θ − 2cos Θ²

solomonzelman · Answer

My bad, yes it is a 2

solomonzelman · Answer

the are positive.
sin²Θ + 2sinΘcosΘ+ cos Θ² + sin²Θ - 2sinΘcosΘ+ cos Θ²

anonymous · Answer

ok thank you

solomonzelman · Answer

the only thing is that you just posted a plain answer, but other than that...

anonymous · Answer

its two don't let him run u in circles she just wants the answer

solomonzelman · Answer

Good work, but if someone wants just the answer, it is not a reason to violate the rule.

solomonzelman · Answer

$$\prod_{ }^{ }\sum_{ }^{ }\Huge{\times }t~~~ti me,~~~I'l l ~~~report.$$

anonymous · Answer

what rule u nerd

yanasidlinskiy · Answer

Calling someone a nerd? You've agreed to the CoC not to be rude:)

anonymous · Answer

coc??

yanasidlinskiy · Answer

http://openstudy.com/code-of-conduct