ICSE
MATHS CLASS 9 – PAGE -294
EXERCISE
– 22(B) – PROBLEM – 09
In
the given figure;
BC
= 15 cm and sin B = 4/5.
(i)
Calculate the measures of AB and AC.
(ii)
Now, if tan and ADC = 1; calculate the measures of CD and AD.
(iii)
Also, show that : tan2 B – 1/ cos2 B = -
1
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