Gruffalo

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2sin(2x)/1-sin^2(x)=5 can convert to tan(x)=1,25

Hi! I need help with this problem:

a) Show that the ecvation 2sin(2x)/1-sin^2(x)=5 can convert to tan(x)=1,25
b) Solv the ecvation tan(x)=1,25 fully read more ..

Gruffalo Sep 27, 2017