Question

find the value how to finding value​

Answer 1

ʜᴇʏᴀ ᴍᴀᴛᴇ ʜᴇʀᴇ ɪs ʏᴏᴜʀ ᴀɴsᴡᴇʀ 
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●We know that :-

${sin}^{2} \alpha = \sqrt{1 - {cos}^{2} \alpha }$
$\: \: \: \: = \sqrt{1 - \frac{1}{2} }$
$\: \: \: = \sqrt{ \frac{1}{2} }$
$\: \: \: = \frac{1}{ \sqrt{2} }$
${sin}^{2} \alpha = \frac{1}{ \sqrt{2} }$

Answer 2

Finding the value:

Step-by-step explanation:

$\ Given \ that:\\\\cos^2 \theta =\frac{1}{2}\\\\\ Find: \\\\sin^2 \theta = ?\\\\\therefore \ \ sin^2 \theta + cos^2 \theta \ = \ 1\\\\\ Solve: \\\\\rightarrow sin^2 \theta + \frac{1}{2} \ = 1\\\\\rightarrow sin^2 \theta =1\ - \frac{1}{2} \\\\\rightarrow sin^2 \theta = \frac{2-1}{2} \\\\\rightarrow sin^2 \theta = \frac{1}{2} \\\\\because sin^2 \theta = \frac{1}{2}$

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• Simplify: https://brainly.in/question/15387636