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Maths TNSB Mentoring
Class 9
Trigonometry
Complementary Angles
6.
Two mark exercise problems VIII
Question:
6
m.
Find the value of \(\theta\) if:
(i)
\(sin \ \theta = 0.9975\)
Answer
:
\(\theta =\)
85°57' or 85°58' or 85°59'
85°55'
85°54' or 85°55'
(ii)
\(cos \ \theta = 0.6763\)
Answer
:
\(\theta =\)
47°27'
27°47'
45°27'
(iii)
\(tan \ \theta = 0.0720\)
Answer
:
\(\theta =\)
47°
4°7'
7°4'
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