Q: Find the value of $$ {\sqrt{(cos^{2}20°+cos^{2}70°)}}$$ – McqOptions

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1.	Q: Find the value of $$ {\sqrt{(cos^{2}20°+cos^{2}70°)}}$$
A.	0
B.	$$ {2\over{\sqrt{3}}}$$
C.	1
D.	$$ {\sqrt{3}\over2}$$
Answer» D. $$ {\sqrt{3}\over2}$$

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