If 2 sin theta minus 1 into 2 sin theta + 1 is equal to zero then find the value of theta
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Step-by-step explanation:
(2sintheta - 1)×(2sin theta +1 ) = 0
therefore, (2 sintheta)^2 - (1)^2 =0
4sintheta^2 = 1
sintheta^2 = 1/4
sintheta = 1/2 .......taking square root
but, sin30° = 1/2
therefore theta= 30°
kvedamurthy62:
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