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Grade: 8
        
if sinθ²+cos θ²=1
prove the equation without putting values
2 months ago

Answers : (2)

Arun
23540 Points
							

According to the Pythagorean theorem,

 

x2 + y2 = r2.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .(1)

Therefore, on dividing both sides by r2,

x2
r2
  +   y2
r2
  =   r2
r2
  =  1.

That is, according to the definitions,

cos2θ  +  sin2θ  =  1.  .  .  .  .  .  .  .  .  .  .  .  .  .(2)

2 months ago
Vikas TU
10081 Points
							
Dear student 
For more information please refer the following link 
Good Luck 
2 months ago
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