The value of 4 sin2 30˚ - tan2 60˚ + sec2 45˚ is equal to -
=> 4 sin2 30˚ - tan2 60˚ + sec2 45˚ => 4 × (1/2)2 - ( √3/1)2 + ( √3)2 => 1 - 3 + 2 = 0
If x2 – 5x + 1 = 0, then find the value of {x2 + (1/x2)}.
Find the value of 3/4 cot² 30° + cos² 30°-3cosec²60° + tan² 60°.
If a + b + c = 12 and ab + bc + ca = 50, then find the value of a2 + b2 + c2.
if 3y-3/y=8 then find the value of y ² +1/y²
If x2 – xy + y2 = 16 and x4 + x2y2 + y4 = 320 then find x2 + xy + y2...
If x + y + z = 30, x² + Y² + z² = 460 and x z = y², then find the value of x z?
If 4x² + y² = 25 and x y = 6, then find the value of 2x + y?
When positive numbers x, y and z are divided by 31, the remainders are 17, 24 and 27, respectively. When (4x - 2y + 3z) is divided by 31, the remainder ...
If a + b + c = 8, a² + b² + c² = 18 and ab + b c+ ca = 12, then what is the value of a³ + b³ +c³ –3abc?
