Question
If sin A + cos A = 1, what is the value of tan A?
Solution
Given sin A + cos A = 1. Squaring both sides: (sin A + cos A)² = 1² sin² A + cos² A + 2 sin A cos A = 1. Since sin² A + cos² A = 1, we have: 1 + 2 sin A cos A = 1. Thus, 2 sin A cos A = 0, which implies sin 2A = 0 Therefore, tan A = 0.
17, 19, 41, 127, 513, ?Â
Find the missing term in the series:
3, 8, 19, 42, 89, ?
161Â Â Â Â 173Â Â Â Â Â Â 191 Â Â Â Â Â Â 215Â Â Â Â Â Â 245 Â Â Â Â Â Â ?
...What will come in place of the question mark (?) in the following series?
4.5, 8, 15, 29, ?, 113
What will come in place of the question mark (?) in the following series?
7, 19, 55, 163, 487, ?
6, 7, 15, 46, 185, ?
What will come in place of the question mark (?) in the following number series?
17, 28, 48, ?, 123, 182
4097, ?, 4359, 4493, 4629, 4767
12   18   31   51   ?   112
17   9   10   16.5   35    ?    273
