Q9 of 61 Page 217

=

We know that,




⇒


⇒


⇒ (∵ cos2θ +sin2θ=1)


⇒


⇒


Hence, proved

More from this chapter

All 61 →
7

If , then the value of =

 8

If x = a secθ, y = b tan θ , then the value of =

 10

=

 11

In the adjoining figure, AC =