Question
If ā3 tan 2Īø ā 3 = 0, then find the value of tanĪø
secĪø ā sinĪø where 0 < Īø < 90Ā°Solution
ā3 tan 2Īø ā 3 = 0 ā3 tan 2Īø =3 
tan 2Īø=tan60Ā° compare both sides- 2Īø =60Ā° Īø =30Ā° Now- tanĪø secĪø ā sinĪø put the value of Īø. tan30Ā° sec30Ā° ā sin30Ā° 
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