if tan d = 1/ 2 root 2 , find 3sin d + 4cos^2 d
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Answer:
tan d= 1/2√2
means
opposite=1
adjacent= 2√2
by pythagorus
hypo=3
sin d= op/hyp.=1/3
cos d= adj./hyp.=2√2/3
3sind=1
4cos square d=32/9
add you get41/9
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