cos a+cos b+cos a cosb =3 find the value of (1-cos a)(1-cos b)
Naru , 5 Years ago
Grade 10
Trigonometry> cos a+cos b+cos a cosb =3 find the value ...
1 Answers
TARUN SHARMA
Last Activity: 5 Years ago
answer = 4 – 2cosa – 2cosb.
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