Question

Find the value of sin^2 30° + cos^2 45° +cos^2 30°

Answer 1

Answer:

${sin}^{2} 30 \degree + {cos}^{2} 45 \degree + {cos}^{2} 30 \degree \\ \\= \frac{1}{2} + \frac{1}{ \sqrt{2} } + \frac{ \sqrt{3} }{2} \\ \\= \frac{ \sqrt{3} + 1 }{2} + \frac{1}{ \sqrt{2} } \\\\</p><p>= \frac{ \sqrt{3} + 1 }{2} + \frac{\sqrt{2}}{{2} }</p><p> \\\\</p><p>= \frac{ \sqrt{3} + \sqrt{2}+1 }{2}$