Calculus of inverse trig functions â exam questions - Douis.net
dx dx. I. u x and dx du. x x x when x u when x u du u. I. Sin. Sin. Sin u Ï Ï Ï ... n. 2 dy. a y xTan x. Tan x x dx x dy dx x x b Tan xdx. Tan x dx x x x. xTan x dx x. Tan.
Calculus of inverse trig functions – exam questions Question 1: June 2008
Question 2: Jan 2010
Question 3: June 2007
Calculus of inverse trig functions – exam questions ‐ answers Question 1: June 2008 5 dx I 1 32 4 x x 2 32 4 x x 2 ( x 2) 2 4 32 36 x 2 I
dx
5
1
32 4 x x 2
dx
5
1
2
u x 2 and dx du
36 ( x 2) 2
when x 1, u 3 when x 5, u 3 I
3
3
3
u 1 1 Sin 1 Sin 1 Sin 1 6 3 2 2 6 6 3 36 u 2 du
Question 2: Jan 2010
dt dt 1 tan 2 1 t 2 d d 1 t2 1 1 cos 2 2 1 tan 1 t 2 t2 1 sin 2 1 cos 2 1 1 t2 1 t2 d dt dt 1 2 2 9 cos2 sin 2 9 t 1 t 9 t2 1 t2 1 t2 a) t tan
so
b) when 0, t tan 0 0 and I
3 0
when
3
, t tan
3 d dt 1 t tan 1 2 2 2 0 9 cos sin 9t 3 0 3
3 1 1 1 1 I tan 1 tan 0 3 3 6 18 3 3 Question 3: June 2007
dy 1 1 Tan 1 x x dx 1 x2 dy x Tan 1 x dx 1 x2 1 1 x x b) Tan 1 x dx (Tan 1 x ) dx 2 0 0 1 x 1 x2 1 1 x dx xTan 1 x 0 0 1 x2 a) y xTan 1 x
3. 1. ( , 1). 1. 3. 1. 3. 1. 2. 2. 1. 1. 3. 3. 1. 2. 2. 2. 2. 1. 2. ( ). 2. 2 0. ) ( ). 2 0. (. 2)(. 1) 0. 2 ln( ). 1 e. 2. ( k k k k k k k k k k k k k k k k k k k k k x. a i y Coshx. Sinhx meets ...Missing:
1. 3to increase by one X â X + 1, decrease by one, or stay the same. When X = 0, the transition probabilities are 1. 2 to go to one Xt = 0 â Xt + 1 = 1 or stay the ...
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