Advertisements
Advertisements
प्रश्न

From the figure find the value of sinθ.
Advertisements
उत्तर
`sinθ = ("AB")/("AC")`
`sinθ = 3/5`
APPEARS IN
संबंधित प्रश्न
If tanθ + sinθ = m and tanθ – sinθ = n, show that `m^2 – n^2 = 4\sqrt{mn}.`
Evaluate
`(sin ^2 63^@ + sin^2 27^@)/(cos^2 17^@+cos^2 73^@)`
Prove the following trigonometric identities.
`sin^2 A + 1/(1 + tan^2 A) = 1`
Prove the following trigonometric identities.
`(cot A + tan B)/(cot B + tan A) = cot A tan B`
Prove the following identities:
`(costhetacottheta)/(1 + sintheta) = cosectheta - 1`
Prove the following identities:
`cosA/(1 + sinA) + tanA = secA`
Prove the following identities:
`sqrt((1 - cosA)/(1 + cosA)) = sinA/(1 + cosA)`
If `(cot theta ) = m and ( sec theta - cos theta) = n " prove that " (m^2 n)(2/3) - (mn^2)(2/3)=1`
Write the value of ` cosec^2 (90°- theta ) - tan^2 theta`
Write the value of`(tan^2 theta - sec^2 theta)/(cot^2 theta - cosec^2 theta)`
If `cos theta = 2/3 , "write the value of" ((sec theta -1))/((sec theta +1))`
Prove the following identity :
secA(1 - sinA)(secA + tanA) = 1
Prove the following identity :
`(cos^3θ + sin^3θ)/(cosθ + sinθ) + (cos^3θ - sin^3θ)/(cosθ - sinθ) = 2`
Prove that:
tan (55° + x) = cot (35° – x)
Prove that `sqrt(2 + tan^2 θ + cot^2 θ) = tan θ + cot θ`.
cos θ . sec θ = ?
If `sin θ + cos θ = sqrt(3)`, then show that tan θ + cot θ = 1.
If tan θ = 3, then `(4 sin theta - cos theta)/(4 sin theta + cos theta)` is equal to ______.
If sinθ = `11/61`, then find the value of cosθ using the trigonometric identity.
(1 + sin A)(1 – sin A) is equal to ______.
