Q9 of 123 Page 9

Prove that:


This can be rewritten as,



But so the above equation becomes,




This can be rewritten as,



But sin (90°–θ)=cos θ


Then the above equation becomes,



Now,



Hence the above equation becomes,








Hence proved


More from this chapter

All 123 →
7

Prove that:

 8

Prove that:

 10

Prove that:

 1

If then write the value of k.