5. If m =
sin A
sin B
COSA
n=
cos B · prove that (m2 - n2) sin? B = 1 - n2.
Answers
Answered by
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Step-by-step explanation:
Observations:
Triangle
Measure of Segments of Respective sides
Ratio of Segments
ABC
AP
PB
ΑΟ
QC
АО
ОС
AQ,
Q,C
ABC
AP
PB
AP
P,B
АР,
PB
aine paralle
AQ,
Q,C
DEF
DEF
ANN
EFG
Suas
EFG
GHI
GHI
POR
*hgferssssssddddds
PQR
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