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Grade: 12th pass 
        
1/(cos A cos B) + tan A tan B = tan C
 
Prove that cos 2C
2 years ago

Answers : (3)

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Nishant Vora
IIT Patna
askIITians Faculty
2467 Points 
							Dear student,

What we need to prove here?
The question is incomplete. Pls clearly post the question again.
2 years ago
View Solution
utpal raj
244 Points 
							@Abhishek I think your question is incompletely posted. What to find out in this..... Please post again
2 years ago
View Solution
imran
55 Points 
							
Hi ABHISHEK DAS
I think question incomplete because you didn’t mention what to find
I hope that next time you will post a correct answer
                                              OK THANK Q
2 years ago
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