InterviewSolution
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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Use trigonometrical tables to find tangent of:(i) 37° (ii) 42° 18' (iii) 17° 27' |
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Answer» (i) tan 37° = 0.7536 (ii) tan 42° 18' = 0.9099 (iii) tan 17° 27' = tan (17° 24' + 3') = 0.3134 + 0.0010 = 0.3144 |
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| 2. |
Use tables to fins sine of:(i) 21° (ii) 34° 42'(iii) 47° 32' (iv) 62° 57'(v) 10° 20' + 20° 45' |
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Answer» (i) sin 21° = 0.3584 (ii) sin 34° 42'= 0.5693 (iii) sin 47° 32' = sin (47° 30' + 2') =0.7373 + 0.0004 = 0.7377 (iv) sin 62° 57' = sin ( 62° 54' + 3') = 0.8902 + 0.0004 = 0.8906 (v) sin (10° 20' + 20° 45') = sin 30° 65' = sin 31° 5' = 0.5150 + 0.0012 = 0.5162 |
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| 3. |
Evaluatesin(90° − A) cosA + cos (90° − A) sinA |
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Answer» sin(90° − A) cosA + cos (90° − A) sinA = cosA cosA + sinA sinA = cos2A + sin2A = 1 |
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