Question
The value of tan 225° is same as the value of:
Solution
We are given tan 225°, and asked which of the options has the same value. tan 225° lies in the third quadrant, where tangent is positive. 225° = 180° + 45°, so: tan 225° = tan(180° + 45°) = tan 45° = 1 So, tan 225° = 1 Now, check values of other options: (a) cos 90° = 0 (b) tan 45° = 1 (c) tan 135° = –1 (d) sin 270° = –1 Only option (b) matches.
3, 8, 27, 124, ?
107    157    194    ?     237    247
...Find the missing number in the given number series.
2, 5, 16, 65, 326, ?What will come in the place of questions (?) mark in the following questions.
40, 25, 30, 50, 105, ?
48, 95, 283, 1129, ?, 33841
- What will come in place of the question mark (?) in the following series?
3, 10, 29, 66, 127, ? Which of the following numbers will replace the question mark (?) in the given series?
17, 30, 44, 59, 75, ?
What will come in place of the question mark (?) in the following series?
15, 16, 25, 50, 99, 180, ?
- What will come in place of (?), in the given number series.
1, 4, 9, 16, ?, 36 18, 22, 28, 38, 54, ?,
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