Question
If cos3B = sin(0.5B + 6°), then find the measure of
'B'.Solution
We know that, cosA = sin(90° - A) cos3B = sin(0.5B + 6°) Or, sin(90° - 3B) = sin(0.5B + 6°) Or, 90° - 3B = 0.5B + 6° Or, 3B + 0.5B = 90° - 6° So, B = (84° / 3.5) = 24°
23 45 89 155 ? 353
580 557 528 497 ? 419
(14.073)² + (32.103)² + (43.9653)² + (52.983)² + ? = (102.45)² + (98.007)²
Complete the series choosing the missing number.
110, 99, 86, ___, 54, 35.
The question below is based on the given series I. The series I satisfy a certain pattern, follow the same pattern in series II and answer the questions...
What will come in place of the question mark (?) in the following series?
17, 81, 131, 169, 197, ?
226  231   466  ?  5606  28031    Â
10, 10, 15, 30, 75, ?
What will come in place of the question mark (?) in the following series?
72, 78, 90, ?, 132, 162
What will come in the place of questions (?) mark in the following questions.
1204, 1218, ? , 1267, 1302, 1344
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