Test Mode Reading Mode Right = 0 Wrong = 0

ক্রিকোণমিতিক অনুপাত

All Question - (859)

a = b cos B + c cos C
a = b cos C + c cos B
b = c cos A + a cos C
b2=c2+a2-2ca cosB
a = b cos B + c cos C
a = b cos C + c cos B
b = c cos A + a cos C
b2=c2+a2-2ca cosB
sin(- θ) = sin θ
cos(- θ) = cosθ
tan(-θ) = tan θ
cot(- θ) = cot θ