Question

Find the value
Sin² 60° + 2 tan² 45° - cos60°

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Answer 1

Answer:

» sin²60⁰ + 2tan²45⁰ - cos60⁰

= 3/4 + 2 - 1/2

= 3/4 + 1/2

= 5/4

Answer 2

Step-by-step explanation:

${( \frac{ \sqrt{3} }{2}) }^{2} + 2 \times {( \frac{1}{ \sqrt{2} } )}^{2} - \frac{1}{2}$

$= \frac{3}{4} + 2 \times \frac{1}{2} - \frac{1}{2}$

$= \frac{3}{4} + 1 - \frac{1}{2}$

$= \frac{3}{4} + \frac{1}{2}$

$= \frac{3 + 2}{4}$

$= \frac{5}{4}$

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