Question

If cos(A+B)=0 and Cot(A-B)=√3,ind the value of secA tanB-cotAsin B

Answer 1

Step-by-step explanation:

secA tan A -cotA sinA

A+ B=90

A-b=30

gives you 2a= 120

A = 120/2

A = 60

2×1/√3-1/√3 4-1/2√3 × 2/2√3 = √3/2