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If sin260° + cos260° + cot245° + tan260° + x = 7 , find the value of x . |
2 -1 1 0 |
2 |
⇒ 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 |
