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anna
 5 years ago
4sin2theta=0
what is the value of theta?
anna
 5 years ago
4sin2theta=0 what is the value of theta?

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0From trig identities, sin(2theta) = 2sin(theta)cos(theta), so 4sin(2theta) = 8sin(theta)cos(theta), which is zero at 0, pi/2, pi, and pi/2. If the domain is restricted to 0\[\le\]theta\[\le\]pi, then it is just 0 and pi.
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