In the following question, select the odd letters from the given alternatives.
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PQR is a right angled triangle in which PQ = QR. If the hypotenuse of the triangle is 20 cm, then what is the area (in cm2) of the triangle PQR?
If tan θ + cot θ = x, then what is the value of tan4θ + cot4θ?
If 2secA - (1 + sinA)/cosA = x, then the value of x is
A train is moving at the speed of 72km/hr. How many seconds will it take to cover a distance of 1400 m ?
To travel 648 km, an Express train takes 12 hours more than Rajdhani. If however, the speed of the Express train is doubled, it takes 6 hours less than Rajdhani. The speed of Rajdhani is _____.
Point Q(-1,b) is the midpoint of segment EF. Co-ordinates of point E are (-4,a) and point F are (2,0). What is the value of a and b?
In a cyclic quadrilateral ABCD ∠BCD=120° and passes through the centre of the circle. Then ∠ABD = ?
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