if cot(alpha + beta) = 0, then find the value of sin(alpha + 2 beta)
Answers
Answered by
123
cot (alpha+beta)=cot90
then,
alpha+beta=90
alpha=90-beta
put in sin (alpha+2 beta)
now,
sin (90-beta+2 beta)
sin (90+beta)
therefore cos(beta) will be your answer
mark me a brainlist
then,
alpha+beta=90
alpha=90-beta
put in sin (alpha+2 beta)
now,
sin (90-beta+2 beta)
sin (90+beta)
therefore cos(beta) will be your answer
mark me a brainlist
Answered by
76
Given that -
cot (α+β) = 0
We have to find sin(α+2β)
cot (α+β) = 0
We know cot 90° =0
α+β =90
β = 90-α
sin (α+2β) = sin(α+2(90-α))
= sin (180-α)
= sin(α) Answer
cot (α+β) = 0
We have to find sin(α+2β)
cot (α+β) = 0
We know cot 90° =0
α+β =90
β = 90-α
sin (α+2β) = sin(α+2(90-α))
= sin (180-α)
= sin(α) Answer
Similar questions