Question

7. If 4 cos2 tita 0-1-0, then the value of cosec tita is
1)root2
2)root3/2
3)2/root3​

Answer 1

Answer:

Explanation:

4cos  

2

x+  

3

​  

=2(  

3

​  

+1)cosx

⇒cosx=  

8

2(  

3

​  

+1)±2(  

3

​  

−1)

​  

=  

2

3

​  

 

​  

,  

2

1

​  

 

⇒x=2nπ+  

3

π

​  

,2nπ+  

6

π

​

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Answer 2

Answer:

hi chelli

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tinnava ma

m chestunnav

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