if cos a = 2/5,find value of 4+4tan²a
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Cos a=2/5
Sec a=5/2
4+4tan2 =4(1+tan2)=4(sec2)=4(5/2)=2*5=10...
I hope its helpful.......
Sec a=5/2
4+4tan2 =4(1+tan2)=4(sec2)=4(5/2)=2*5=10...
I hope its helpful.......
Rishabhthemaster:
it's helpful to me
hmm
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