If sin260° + cos260° + cot245° + tan260° + x = 7 , find the value of x .
Answer & explanation
Correct answer: option 1
⇒ sin260° + cos260° + cot245° + tan260° + x = 7
⇒ (\(\frac{\sqrt {3}}{2}\))2 + (\(\frac{1}{2}\))2 + (1)2 + (\(\sqrt {3}\))2 + x = 7
⇒ \(\frac{3}{4}\) + \(\frac{1}{4}\) + 1 + 3 + x = 7
⇒ 1 + 1 + 3 + x = 7
⇒ x = 2