Practicing Success
If sin245° + cos245° + cot230° + tan260° - x = 5, find the value of (x - 2). |
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0 |
⇒ sin245° + cos245° + cot230° + tan260° - x = 5 ⇒ (\(\frac{1}{\sqrt {2}}\))2 + (\(\frac{1}{\sqrt {2}}\))2 + (\(\sqrt {3}\))2 + (\(\sqrt {3}\))2 - x = 5 ⇒ 1 + 3 + 3 - x = 5 ⇒ x = 2 Now → x - 2 = 2 - 2 = 0 |