Question

112
If 0 =11π
then cos 0 + sin 0=
​

Answer 1

Answer:

Step-by-step explanation:

θ=  

4

11π

​

=(3π−  

4

π

​

)

sinθ=sin(3π−  

4

π

​

)=sin  

4

π

​

=sin45  

0

=  

2

​

 

1

​

 

cosθ=cos(3π−  

4

π

​

)=−cos  

4

π

​

 

=−cos45  

0

=−  

2

​

 

1

​

 

tanθ=tan(3π−  

4

π

​

)=−tan  

4

π

​

=−tan45  

0

=−1

∴ Given expression =  

2

1

​

−  

2

1

​

−2−2=−4