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C2 Trigonometry + Solutions

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Submitted By dalefinch
Words 400
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Trigonometry

Topic Assessment

1. Solve these equations for [pic] a. [pic] b. [pic] c. [pic] [6]

2. Solve these equations for [pic]. Give your answers as a multiple of [pic]. a. [pic] b. [pic] c. [pic] [6]

3. Solve these equations for [pic] a. [pic] b. [pic] c. [pic] [9]

4. Solve these equations for [pic]. Give your answers as a multiple of [pic]. a. [pic] b. [pic] c. [pic] [9]

5. Solve these equations for [pic] a. [pic] b. [pic] c. [pic] [9]

6. Solve these equations for [pic] a. [pic] [4] b. [pic] [4] c. [pic] [3]

Total 50 marks

Topic Assessment Solutions

1. (i) [pic] Solutions are in the 1st and 4th quadrants. [pic] or [pic] [pic]

(ii) [pic] Solutions are in the 3rd and 4th quadrants [pic] or [pic] [pic]

(iii) [pic] Solutions are in 1st and 3rd quadrants. [pic] or [pic] [pic]

2. (i) [pic] Solutions are in 1st and 4th quadrants. [pic] or [pic] [pic]

(ii) [pic] Solutions are in 1st and 2nd quadrants [pic] or [pic] [pic]

(iii) [pic] Solutions are in 1st and 3rd quadrants [pic] or [pic] [pic]

3. (i) [pic] Solutions are in 1st and 2nd quadrants [pic] or [pic] [pic]

(ii) [pic] Solutions are in 1st and 4th quadrants [pic]

(iii) [pic] Solutions are in 2nd and 4th quadrants [pic] or [pic] [pic]

4. (i) [pic] [pic] has solutions in the 1st and 4th quadrants [pic] or [pic] [pic] has solutions in the 2nd and 4th quadrants [pic] or [pic] [pic]

(ii) [pic] [pic] has solutions in the 1st and 3rd quadrants [pic] or [pic] [pic] has solutions in the 2nd and 4th quadrants [pic] or [pic] [pic]

(iii) [pic] [pic] has solutions in the 1st and 2nd quadrants [pic] or [pic] [pic] has solutions in the 3rd and 4th quadrants [pic] or [pic] [pic]

5. (i) [pic] Solutions for 2x are in the 3rd and 4th quadrants. [pic] or [pic] or[pic] or [pic] [pic]

(ii) [pic] Solutions for [pic] are in the 1st and 4th quadrants, but the one in the 4th quadrant will give a value for x which is out of the range. [pic]

(iii) [pic] Solutions for 3x are in the 1st and 3rd quadrants [pic] or [pic] or [pic]or [pic] or [pic]or [pic] [pic]

6. (i) [pic] [pic] or [pic] [pic]

(ii) [pic] [pic] or [pic] [pic]

(iii) [pic] [pic]

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