2sin 2x sin2x 2cos2x 1 x2 1
[DOC File]A Level Mathematics Questionbanks
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= y = = A1 (-1 if not simplified) [8] 9. a) Gradient of curve y = x2 – x – 2 : m = = 2x – 1 M1 A1. At the point (2, 0), x = 2 hence m =2(2) –1 = 3. For normal, m = - M1 A1 f.t. y = -(x –2) M1 (use of line equation) 3y = -x +2. 3y + x = 2 A1 (simplified form) [6] b) 3y + x = 2. y = x2 – x – 2. 3x2 – 3x – 6 = 2 – x M1 (attempt ...
[DOC File]Transformari identice ale expresiilor algebrice
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(1) Cum rezolvarea ecuatiilor trigonometrice se reduce la rezolvarea ecuatiilor de tipul (1) (utilizand diferite transformari), vom aminti afirmatiile de baza referitor solutiile ecuatiilor (1). Afirmatia 1. Ecuatia . …
[DOC File]A Level Mathematics Questionbanks
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b) cos2x ( 1 sin2x M1. sin2x sin x 1=0 M1 A1. sin x = M1. sinx = -1.618.. or 0.618.. A1 cao-1.618… gives no solutions. x = 0.666 or 2.48 A2 [7] 6. a) i) cos2x ( 1 sin2x B1. 3sin x + 2cos2x ( 3s + 2(1 s2) M1
[DOC File]Analiza I: 3. kolokvij - plonkec na A4
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0 30 45 60 90 sin 0 ½ √2/2 √3/2 1 cos 1 √3/2 √2/2 ½ 0 tg 0 √3/3 1 √3 ( sin (a + b) = sin a cos b + cos a sin b. cos (a + b) = cos a cos b + sin a sin b
[DOC File]JustAnswer
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6232E Part 5. 1. I like Trigonometry as it compels me to think seriously while solving problems. Analyzing capability increases. 2. Plot of y = cosx between 0 and 360 degrees will be as given below.
[DOC File]وزارة التعليم و التعليم العالى- الرئيسية
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When 8x3 + 2x -1 is divided by 2x + 1 the remainder is : a) -13 b) 9 c) 3 d) - 3 ... sin2x –cos2x b) cos2x-sin2x c) 1-2cos2x d) 2sin2x-1 ... (19) Given f(x) = x + 2 , g(x) = x2 + 1 solve the equation f o g (x) = 4 (20) Plot the graph of the function y = 2+1 ...
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