is there any genius who will tell me the formula of sin (a+b+c) and cos (a+b+c) and tan (a+b+c)
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Answer:
(a+b+c)
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Step-by-step explanation:
a^2 + ab + ac + ba + b^2 + bc + ca + cb + c^2; =a^2 + b^2 +c^2 + ab +ba +bc +cb + ac + ca ; =a^2 + b^2 + c^2 + 2ab + 2bc + 2ca; So here we get✔✔✔✔
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