NCERT Class 10 Chapter 8 Trigonometry Official CBSE Board Sample Problems Long Answer
Get unlimited access to the best preparation resource for CBSE : fully solved questions with step-by-step explanation- practice your way to success.
Question
If
Solution
So,
Question
Prove that
Solution
Question
If , prove that
Solution
We have (Given)..(i)
We know that
…(ii)
Adding (i) and (ii) we get
And
Question
If sin and, find the value of:
Solution
(Given)
s )
Also (Given)
(As )
... (ii)
Solving (i) and (ii) for A and B, we get and
(j)
(ii)
Question
If , find the value of:
Solution
Give
Now put values of and in the given expression
We get
Question
Solution
Taking LHS
RHS
Question
Prove:
Solution
LHS
RHS
Now LHS=RHS
Question
Prove that
Solution
Question
If then find the value of CosecX
Solation
Adding 1 and 2 we get
On subtracting 2 from 1 we get
Question
Solution
LHS