If x + 2y = 27 and x - 2y = -1, find the value of y.
7
Add the two equations: (x+2y) + (x−2y) = 27 + (−1) → 2x = 26 → x = 13.
Subtract: (x+2y) − (x−2y) = 27 − (−1) → 4y = 28 → y = 7.
So y = 7.
Hence, 7.
If 2x(x + y + z) = 250, 2y(x + y + z) = 100, 2z(x + y + z) = 100, then find the value of (3x + 6y + 15z).
Solve: If 8x + 5y = 9 and 3x + 2y = 4, find the value of x.
A.-2
B.5
C.2
D.-5
If tan 3 θ = cot(θ - 22°), where 3 θ is an angle, find the value of θ.
1 + tan 15° cot 75° is equal to:
The value of cot (-315°) is :
θ = 135°; γ = 15°.
What is the value of 2 cos(θ) sin(γ)?
If tan(90 – θ) = \(\frac{2}{\sqrt3}\), then the value of \(2\sqrt3\) tan θ + 1 is: