prove that cos²+sin²=1
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Answered by
5
Answer:
Step-by-step explanation:
cos = b/h and sin = b/h
LHS
Sin2 +cos2
={p/h}2 +[b/h]2
=p2 +b2 /h2
=h2/h2
=1
=RHS.......{...HENCE PROVED}
Answered by
0
Answer:
Step-by-step explanation:
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