What is the value of [(sin 59° cos 31° + cos 59° sin 31° )÷(cos 20° cos 25° – sin 20° sin 25° )]?
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What is the value of tanπ4+A×tan3π4+A ?
What is the value of [(cos32θ + 3 cos 2θ)÷(cos6θ – sin6θ)]?
In the given figure, ABCDEF is a regular hexagon of side 12 cm. P, Q and R are the mid points of the sides AB, CD and EF respectively. What is the area (in sq.cm) of triangle PQR?
A = (x8 – 1)/(x4 + 1) and B = (y4 – 1)/(y2 + 1). If x = 2 and y = 9, then what is the value ofA2 + 2AB + AB2?
If x + y = 3, then what is the value of x3 + y3 + 9xy?
If x2 – 4x + 1 = 0, then what is the value of x9 + x7 – 194x5 – 194x3?
If [a + (1/a)]2 – 2[a – (1/a)] = 12, then which of the following is a value of 'a'?
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