Given: a=sin−1(sin(5))andb=cos−1(cos(5))
⇒a=5−2πandb=2π−5
⇒a2+b2=(5−2π)2+(2π−5)2
⇒a2+b2=25+4π2−20π+4π2+25−20π
⇒a2+b2=8π2−40π+50
If a=sin−1(sin(5)) and b=cos−1(cos(5)), then a2+b2 is equal to
Held on 31 Jan 2024 · Verified 6 Jul 2026.
4π2+25
8π2−40π+50
4π2−20π+50
25
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