Question

evalute: sin² 30° - 2cos^ 60° + 3 tan^ 45°​

Answer 1

Answer:

Hope it helps you.....

Answer 2

$\;\qquad\;\;\large{\odot\;\;\underline{\underline{\bf{\red{Your\; Question↷ }}}}}$

evalute: sin² 30° - 2cos^ 60° + 3 tan^ 45°

$\;\qquad\quad\;\;\large{\odot\;\;\underline{\underline{\bf{\red{Required\;Answer↷ }}}}}$

$\huge\bold{AnSwEr}$

$\implies\bold{Sin30=\frac{1}{2}}$

$\implies\bold{Cos60=\frac{1}{2}}$

$\implies\bold{Tan45=1}$

$\implies\bold{So\;sin\;2\;30-2\;cos^3\;60+3\;tan^4\;45}$

$\implies\bold{(\frac{1}{2})^2-2(\frac{1}{2})^3+1^4}$

$\implies\bold{\frac{1}{4}-2(\frac{1}{8})+1}$

$\implies\bold{\frac{1}{4}-\frac{1}{4}+1=1}$

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