sin^2 *0* + ? = 1

sin *0/ *cos *0 = ?*

Is any body able to explain this to me?

### 1 Answer | Add Yours

sin^2 *0* + ? = 1

sin *0/ *cos *0 = ?*

*Solution:*

*By trigonometry, sine^2(x)+cos^2(x)=1 for all x.*

*Putting x=0.sine^2 0+cos^2 0 = 1.*

*sine^2 0 +cos^2 0 = 1, as sin 0 = 0 and cos 0 =1*

*So , cos^2 0 =1 is to be added to sine^2 0 to get 1*

*To find Sin 0 /cos 0 .*

*Sin 0 = 0 and cos0 =1.*

*So, sin 0/cos 0 = 0/1 = 0.*

### Join to answer this question

Join a community of thousands of dedicated teachers and students.

Join eNotes