3 years ago

ℍ , ? ℙ ℝ *ℕ ℝ ℕℝ ℙ**

Mathematics

1 answer:

antiseptic1488 [7]3 years ago

5 0

x , y

1 , 7.5

2 , 15

3 , 22.5

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If x = a sin α, cos β, y = b sin α.sin β and z = c cos α then (x²/a²) + (y²/b²) + (z²/c²) = ?

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<u>Given:</u>

$\rm \longmapsto x = a \sin \alpha \cos \beta$

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<u>Therefore:</u>

$\rm \longmapsto\dfrac{ {x}^{2} }{ {a}^{2}} + \dfrac{ {y}^{2} }{ {b}^{2} } + \dfrac{ {z}^{2} }{ {c}^{2} } = 1$

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