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NNADVOKAT [17]
3 years ago
10

If

alt="sin\theta = \frac{1}{3}" align="absmiddle" class="latex-formula"> , \frac{\pi }{2}  \  \textless \  \theta \  \textless \  \pi. Find the exact value of
sin (\theta + \frac{\pi }{6})
Mathematics
1 answer:
vlada-n [284]3 years ago
7 0

Answer:

- 0.183

Step-by-step explanation:

Given that \sin \theta = \frac{1}{3}

and \frac{\pi }{2} < \theta  < \pi

We have to find the exact value of \sin (\theta + \frac{\pi }{6} ).

Now, \sin \theta = \frac{1}{3}

⇒ \theta = \sin ^{-1} (\frac{1}{3} ) = 19.47

Now, since  \frac{\pi }{2} < \theta  < \pi,

So, \theta  = 180 - 19.47 = 160.53

{Since \sin \theta = \sin (180 - \theta)

Now, \theta + \frac{\pi }{6} = 160.53 + 30 = 190.52

Hence, \sin (\theta + \frac{\pi }{6} ).

= \sin 190.52

= - 0.183 (Approximate) (Answer)

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