solve these three problems.
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301. X²+y²=a²
302. 1
303. 1
302. 1
303. 1
Sekhar11:
explain
see
yours answers are correct.But how you solved those
x²+y²=(acosA)²+(asinA)²=a²cos²A + a²sin²A=a²(cos²A + sin²A)=a² x 1= a²
x²/a²+y²/b²=a²cos²A/a² + b²sin²A/b² =>cos²A +sin² A =1
x⅔ + y⅔ =(cos³A)⅔ + (sin³A)⅔ =Cos²A +sin²A =1
please mark my answer as brainleist answer
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♧♧HERE IS YOUR ANSWER♧♧
Trigonometry is the study of angles and its ratios. This study prescribes the relation amongst the sides of a triangle and angles of the triangle.
There are sine, cosine, tangent, cot, sectant and cosec ratios to an angle of a triangle.
Let me tell you an interesting fact about Trigonometry.
"Triangle" > "Trigonometry"
Remember some formulae now :
sin²θ + cos²θ = 1
sec²θ - tan²θ = 1
cosec²θ - cot²θ = 1
Want to learn more!
Here it is :
sin(A + B) = sinA cosB + cosA sinB
sin(A - B) = sinA cosB - cosA sinB
cos(A + B) = cosA cosB - sinA sinB
cos(A - B) = cosA cosB + sinA sinB
(SEE THE ATTACHMENT)
♧♧HOPE THIS HELPS YOU♧♧
Trigonometry is the study of angles and its ratios. This study prescribes the relation amongst the sides of a triangle and angles of the triangle.
There are sine, cosine, tangent, cot, sectant and cosec ratios to an angle of a triangle.
Let me tell you an interesting fact about Trigonometry.
"Triangle" > "Trigonometry"
Remember some formulae now :
sin²θ + cos²θ = 1
sec²θ - tan²θ = 1
cosec²θ - cot²θ = 1
Want to learn more!
Here it is :
sin(A + B) = sinA cosB + cosA sinB
sin(A - B) = sinA cosB - cosA sinB
cos(A + B) = cosA cosB - sinA sinB
cos(A - B) = cosA cosB + sinA sinB
(SEE THE ATTACHMENT)
♧♧HOPE THIS HELPS YOU♧♧
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