mhf4u1-assignment_chapter_4_a_-_solutions

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Nov 24, 2024

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S -~ MHF4U1-CHATER 4A -ASSIGNMENT i < DATE:_So \ubions True/False - ] Indicate whether the statement is true or false. @ i 1. The radian is an alternative unit to the degree for angle measurement. l 2. The radian measure of an angle i$ defined as the length of the arc that subtends the angle divided Q = X by the radius of the circle. i r Nz 2 S ¢ 3 1 /L e N o s - . o i \| q ’T cus[%—x]-smx C"bflz-"—‘?():s‘\”x »r 4 Multiple Choice Identify the choice that best completes the statement or answers the question. d 5. The exact radian measure for an angle of 30° is ~ a c. x 2, o> s = 3 2 e b. z d = 3 6 lz 6. The exact radian measure for an angle of 135° is e c = (35° & _’__[: 2% 4 2 4 b3y d = 4 3 Qa3 - bT 7. 3 of arevolution represents approximately how many radians? e=a T S a 628 c. 3.77 s 5 b. 3.14 d. 108.00 2n 5 (% 8. Determine the exact degree measure for 5. 1}(, (g ~ Go° & a 72 L BTt o $2 b. 226° d. 144® = (9. Determine the approximate degree measure for an angle of 7 radians. . s as 25.7° c. 04° . e = 25, T —_— 38 7 ~ b, slue d. 2z.0° 7
i 10. 11. 12. 13. 14. 15; b. 51.4° = ; csc = Determine the exact value of . a. 1 2 b3 x . tan— Determine the exact value of 9 8 <= & (") b .f3 | cscg Determine the exact value of 5 a. 2 Ve b. 2 Determine the exact value of 3. a. 2 b 3 sec 2 Determine the exact value of 3 a. 2 b5 7% COS === Determine the exact value of 6. a. -2 b 3 2 22.0° ey NS Lt NS ESTE olE w o ol ) =2 e ( t Sl eve = R [2 & e 8 = AJ; = - \ /3 - Jq.\I ~4— = S * I ad ———‘ - - .L-«al; = 2 - z
16. 17. 18. 19. 20. 21. 22. 23; Tn Determine the exact value of 6. : csc Determine the exact value of LI % -~ b3 2 . 5% = Determine the exact value of 3 . a —2 b .3 . sec Determine the exact value of . agi =g b .f3 S5n cot=— Determine the exact value of 3. a. 1 Wi b3 Determine the exact value of €5¢ X, a. 0 b. -1 Determine the exact value of $&¢ 2%, a. 0 b. -1 Determine the exact value of ¢0t2%. a. 0 p - Iz | ~4J3 -5 _x " 2 Jriss 2 —m < il P %\ & L / Ci fi T ¢ e = i 7 - 2- C. d. . undefined c d. | n “fi% Use +r 7(1 Lo M2 = c _ 1 L i = i tF T A a1 2 CSce W= L = I =z unde B | oy sinTr =) Ay d. undefined c 1 seczw = | =4 d. undefined cesam) | | N | Au"rwe(( (S | Cot?T 2 Tndy 0 e
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24. b. -1 d. undefined . b 2 . s - . F \ Determine the exact value of ¢ = ¥ a. 0 -8 (= 1 b. -1 d. undefined : = | D '43— =] sec3 - o 0 = ulefoad 2h e b Ql_ 25. Determine the exact value of 2. <77 % = a. 0 c. 1 b. -1 d. undefined _(}1 26. Use your calculator to determine the value of cos (~1.71), to three decimal places. & vecels * a. -0.139 c. 0139 b. 1.000 d. -1.000 L 27. Use your calculator to determine the value of €3¢ 0.71, to three decimal places. # r=els % a. 0.652 c. 0012 b. 1.534 d. 80.700 sec = L 28. Use your calculator to determine the value of 11 to three decimal places. s vewls # a. -1.189 c. —0.841 b. 1.002 d. 0.998 cos[ = X ] 0\_ 29. An equivalent trigonometric expression for is a. snx C. COsX b. tanx d. none of the above safx 3 L 30. An equivalent trigonometric expression for is a. snx C. COSX b. tanx d. none of the above o A tan[x + 3] i 31. An equivalent trigonometric expression for is a. tanx c. cotx i b. -tanx d. none of the above L 32. An equivalent trigonometric expression for sin(~7) i a. smx C. COSX b. -snx d. -coesx Completion Complete each statement. 33, The angle formed at the centre of the circle by two radii is the _ (€ V\Sf"‘( l angle.
34. An angle with no symbol is understood to be measured in _ 00‘ fans ] 35. cos& sné andtan & are known as the D M% trigonometric ratios. x 003[7 -X] - SmX 36. is an example ofa _ (" £ugc Lcw identity. Short Answer 37. A child swings on a playground swing set. If the length of the swing is 3 m and the child swings x through an angle of 9, what is the exact arc length through which the child travels? 38. A bicycle tire revolves at 150 rpm (revolutions per minute). What is its angular velocity, in radians per second, rounded to two decimal places? 39. A 3-m ladder is leaning against a vertical wall such that the angle between the ground and the x ladder is . What is the exact height that the ladder reaches up the wall? . ] . SINX = COS ¢ - . 40. Given that 5 and that x lies in the first quadrant, determine the exact measure of angle % Problem . 41. A skateboard ramp is built with an incline angle of 12 1If the base of the ramp is 1 m in length, determine the exact height of the ramp.
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