a trig question (1 Viewer)

[lollol]

if a/sinA=b/sinA, show that sinAcosA=ab/a^2+b^2 ?

 

[zeek]

are you sure its a/sinA = b/sinA and not a/sinA = b/sinB?

 

[fishy89sg]

lollol

 

[mrzeidan1]

if a/sinA=b/sinA, show that sinAcosA=ab/a^2+b^2 ?

Supposed to be a/sinA = b/cosA I think