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hello dear !! here is your answer !!
hope it helped you !!
A=30°
thank you !!
hope it helped you !!
A=30°
thank you !!
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(2sinA+1)(2sinA-1) = 0
Make product
=> 4sin²A - 2sinA + 2sinA - 1 = 0
=> 4sin²A - 1 = 0
=> 4sin²A = 1
=> sin²A = 1/4
=> sinA = 1/2
=> sinA = sin30°
Sin cancels sin becoms
=> A = 30°
Make product
=> 4sin²A - 2sinA + 2sinA - 1 = 0
=> 4sin²A - 1 = 0
=> 4sin²A = 1
=> sin²A = 1/4
=> sinA = 1/2
=> sinA = sin30°
Sin cancels sin becoms
=> A = 30°
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