For the following questions, choose the correct answers from the codes (a), (b), (c) and (d) def... VIDEO
For the following questions, choose the correct answers from the codes (a), (b), (c) and (d) defined as follows.
(a) Statement I is true, Statement II is also true, Statement II is the correct explanation of Statement I
(b) Statement I is true, Statement II is also true, Statement II is not the correct explanation of Statement I
(c) Statement I is true, Statement II is false
(d) Statement I is false, Statement II is true
Statement I For any \( \triangle A B C \)
\[
\sin \left(\frac{A+B+C}{3}\right) \geq \frac{\sin A+\sin B+\sin C}{3}
\]
Statement II \( y=\sin x \) is concave downward for \( x \in(0, \pi] \)
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