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a) 4sin30°+6cos60°+5tg45°..... b) 2sin60°-4cos30°+3tg60°​

Răspuns :

a) 4sin 30°+6cos 60°+5tg 45°=

=4×1/2+6×1/2+5×1=

=2+3+5=10

b) 2sin 60°-4cos 30°+3tg 60°=

=2×√3/2-4×√3/2+3√3=

=√3-2√3+3√3=2√3