1 Evaluate the following
sin 35° cos 55° + cos 35° sin 55° + 2 tan 15° tan 45º tan 75
ir is an
value of
a
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1
Step-by-step explanation:
Sin(90°-55°) cos(90°-35°)+con(90°-55°)+2 tan(90°-75°) (1) tan 75°
=cos55°sin35°+sin55° cos35°+2 cot75°tan75°
=sin(35°+55°)+2
=sin 90°+2
=1+2
=3
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