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What is the value of $sin^2 60 +tan^2 45 + sec^245 - cosec^2 30$ ? |
4 $\frac{1}{4}$ $-\frac{1}{4}$ -4 |
$-\frac{1}{4}$ |
sin² 60º + tan² 45º + sec² 45º - cosec² 30º = ( \(\frac{ √3 }{2}\) )² + 1 + ( √2 )² - ( 2 )² = ( \(\frac{ 3 }{4}\) ) - 1 = - \(\frac{ 1 }{4}\) |
