Question

the value of sin² 30 + cos² 45+cos² 30 is​

Answer 1

Step-by-step explanation:

(1/2)^2+(1/root2)^2+(root3/2)^2

1/4+1/2+3/4

=1+2+3/4

=6/4

=3/2

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Answer 2

Hy , I will help you...

$= > {sin}^{2} 30 + {cos}^{2} 45 + {cos}^{2} 30$

$= > {( \frac{1}{2}) }^{2} + ({ \frac{1}{ \sqrt{2} } )}^{2} + { (\frac{ \sqrt{3} }{2}) }^{2}$

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

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

$= > \frac{6}{4} = > \frac{3}{2}$