From the given figure, find trigonometric ratios of angle B sin b
Answers
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Step-by-step explanation:
ANSWER
Given: ∠A=30
∘
,AB=8,AC=17
By Pythagoras Theorem,
AB
2
+AC
2
=BC
2
8
2
+AC
2
=17
2
AC
2
=289−64
AC
2
=225
AC=15 cm
sin
2
B+cos
2
B=(
BC
AC
)
2
+(
BC
AB
)
2
= (
17
15
)
2
+(
17
8
)
2
=
289
225+64
= 1
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