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C2 trig question please help

My question is
P and Q are points on a circle of radius r, and the chord PQ subtends an angle
2θ 2\theta radians at its center O. If A is the area enclosed by the minor arc PQ and the chord PQ, and if B is the area enclosed by the arc PQ and the tangents to the circle at P and Q prove that


A−B≡r2(2θ−tanθ−sinθ cosθ) A-B\equiv r^2(2\theta - tan\theta - sin\theta \ cos\theta)



This is my work however I dont know where I am going wrong and what I can do

Please put me in the right direction.

Thank you
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Reply 1
Avatar for bigmansouf
bigmansouf
OP
20
bump*

anyone please help
I'll help u in the afternoon once I'm done wid my Al exam :smile:
Reply 3
Avatar for bigmansouf
bigmansouf
OP
20
thanks looking forward to it
Reply 4
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bigmansouf
OP
20
*bump any one please
Reply 5
Avatar for Iowan
Iowan
4
Original post by bigmansouf
*bump any one please


Your Area of B is wrong it isn't the whole thing it is the area enclosed between the minor arc of p and q and the intersection of the tangents rather than what you did of the major arc and the tangent
also i think if you did include the major arc then A-B would be the little area - big area
Reply 6
Avatar for bigmansouf
bigmansouf
OP
20
thanks
Reply 7
Avatar for Iowan
Iowan
4
Original post by bigmansouf
thanks


sure
if you need more help im still up for about another hour
Reply 8
Avatar for bigmansouf
bigmansouf
OP
20
tomorrow im working on trig identities i will look at it during the evening and feedback
Reply 9
Avatar for Red.Hope
Red.Hope
Hey guys, is anyone doing statistics higher 2015?

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