if sin alpha + sin beta + sin gamma + sin delta = 4, then find the value of cos alpha + cos beta + cos gamma + cos delta
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Answered by
5
Answer:
ANSWER WILL BE 0
Step-by-step explanation:
Value of sin vary from
-1≤ sinФ≤1
so, here,
sinα+sinβ+sinγ+sinδ=4
here it will only possible, if sinα=sinβ=sinγ=sinδ=1
or, α=β=γ=δ=90°
so, cosα+cosβ+cosγ+cosδ=0
( as cos90°=0)
it will absolutely help you!!!
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