Class 10 previous year questions of trigonometry with Solutions




1. What is the value of


 2.If tan2A = cot(A-18°) where 2A is an acute angle , find the value of A.

3.If




 4 . Find the value of ( cos 48° - sin 42°).

5. Prove that :


6.prove that :

 
7.prove that :

 

8.prove that :


 







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