A) \[0.3\]
B) \[\sqrt{0.49}\]
C) \[\sqrt{0.51}\]
D) \[\sqrt{0.9}\]
Correct Answer: C
Solution :
\[\sin \theta =0.7\] \[\therefore \]\[\cos \theta \] \[=\sqrt{1-{{\sin }^{2}}\theta }=\sqrt{1-{{(0.7)}^{2}}}\] \[=\sqrt{1-0.49}=\sqrt{0.51}\]You need to login to perform this action.
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