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Question 25
ΔXYZ is right angled at Y. If $$sinX = \frac{4}{5}$$, then what is the value of $$cos Z$$ ?
Solution
Given : $$\sin X$$ = $$\frac{4}{5}$$
Also, $$\sin X=\frac{YZ}{XZ}=\frac{4}{5}$$
Let YZ = 4 cm and XZ = 5 cm
To find : $$\cos Z=\frac{YZ}{XZ}$$
= $$\frac{4}{5}$$
=> Ans - (C)
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