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

Answers : (3)

Nishant Vora
IIT Patna
askIITians Faculty
2469 Points
										Dear student,

What we need to prove here?
The question is incomplete. Pls clearly post the question again.
one year ago
utpal raj
244 Points
										@Abhishek I think your question is incompletely posted. What to find out in this..... Please post again
										
one year ago
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
one year ago
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