Question

3. If tan theta = a/b, then find sin theta
?​

Answer 1

Answer:

sinQ= a/√(a²+b²)

draw triangle

Answer 2

Step-by-step explanation:

given tantø=a/b

consider triangle abc be an rt angled triangle

angle B=90⁰ let angle C=ø

tanø=AB/BC=a/b

applying phythogaras theroem

(AC)²=(AB)²+(BC)²

=> (AC)²=(a)²+(b)²

=> AC=√(a²+b²)

=>AC=a+b

sinø=o/h=AB/AC=a/a+b