sir i do have one problem .please solve ut sir .if tanA =1/2 then find out the value of Sin3A.
Akshay kumar Gupta , 7 Years ago
Grade 10
Trigonometry> sir i do have one problem .please solve u...
1 Answers
Arun
Last Activity: 7 Years ago
Dear Akshay
tan A = ½
Hence
Sin A = 1/ sqrt(5)
Now
Sin 3A = 3 sinA - 4 sin³A
Now put the value of sin A and get your answer.
Regards
Arun (askIITians forum expert)
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