समीकरण tan(sum(r=1)^(5) cot^(-1) (2r^(2)...

समीकरण `tan(sum_(r=1)^(5) cot^(-1) (2r^(2))) = (5x+6)/(6x+5)` के हलों की संख्या ज्ञात कीजिये।

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