If sin245° + cos245° + cot230° + tan260° - x = 5, find the value of (x - 2).
Answer & explanation
Correct answer: option 3
⇒ 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