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Given, 7cos²θ = 1 + sin²θ Or 7cos²θ - sin² θ = 1 Or 7cos²θ - (1 - cos²θ) = 1 Or 8cos²θ = 2 Or cos²θ = (2/8) =1/4 Or cosθ = 1/2 (Since, in options maximum value of 'θ' is 90°therefore, we will take the positive root only) Or cosθ = cos60° θ=60°
If 10 9 38 x 5428
Then, 2x² + 1 = ?
...13 24 75 134 447 892
...11   33   66   112   173    ?  . Â
3Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 5Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 7Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 25Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 8...
The series given below contains a sequence of numbers. Accordingly identify the incorrect number.
85, 84, 81, 88, 77, 92, 72
40 41 86 ? 1084 5445
...12 Â Â Â 11 Â Â Â Â 21 Â Â Â Â 62 Â Â Â Â ? Â Â Â Â Â 1234
Direction: Which of the following will replace ‘?’ in the given question?
10, 12, ‘?’, 27, 36, 45, 54, 63, 72
112    162    199    ?     242    252
...6Â Â Â Â Â Â Â Â Â Â Â Â Â Â 16Â Â Â Â Â Â Â Â Â Â Â 116Â Â Â Â Â Â Â Â Â 566Â Â Â Â Â Â Â Â Â 2272Â Â Â Â Â Â Â 6814
11       a�...
