1.

(sin(15^circ) %2B cos(15^circ))/(-sin(15^circ) %2B cos(15^circ))

Answer»

Multiply N and D by 1/√2

1/√2 cos15 + 1/√2 sin 15)/ ( 1/√2 cos 15 - 1/√2 sin 15)

sin 45 cos 15 + cos45 sin 15)/( sin 45 cos 15 - cod 45 sin 15)

sin ( 45 +15)/ sin( 45-15)

sin ( 60)/ sin 30

√3

1/ under root 3 is the right answer of this problem


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