Sin and cos and.....

Geometry Level pending

If sin ⁡ A − cos ⁡ A = 0 \sin A - \cos A = 0 , then find the value of csc ⁡ 2 A − sec ⁡ 2 A \csc^{2} A - \sec^{2} A is equal to....

0 1 2 1/2

Ojasee Duble by Ojasee Duble , 19, India

This section requires Javascript.
You are seeing this because something didn't load right. We suggest you, (a) try refreshing the page, (b) enabling javascript if it is disabled on your browser and, finally, (c) loading the non-javascript version of this page . We're sorry about the hassle.

1 solution

Hana Wehbi
Oct 25, 2017

If s i n A − c o s A = 0 ⟹ s i n A = c o s A sin A - cos A = 0\implies sin A=cos A . This only happens when A = π 4 ⟹ c s c 2 A − s e c 2 A = 0 A=\frac{\pi}{4}\implies csc^2A-sec^2A=0

0 Helpful 0 Interesting 0 Brilliant 0 Confused

Thank you for posting the solution :)

Ojasee Duble - 3 years, 7 months ago

Log in to reply

You're welcome.

Hana Wehbi - 3 years, 7 months ago

0 pending reports

×

Problem Loading...

Note Loading...

Set Loading...