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Recent questions tagged trignometry
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ISI2019MMA9
$(\cos 100^\circ + i \sin 100^\circ)(\cos 0^\circ + i \sin 110^\circ)$ is equal to $\frac{1}{2}(\sqrt3 – i)$ $\frac{1}{2}(\sqrt3 – i)$ $\frac{1}{2}(\sqrt3 +i)$ $\frac{1}{2}(\sqrt3 + i)$
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May 6
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Sayan Bose
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isi2019mma
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trignometry
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2
ISI2019MMA8
For $0 \leq x \leq 2 \pi$, the number of solutions of the equation $\sin^2x + 2 \cos^2x + \sin x \cos x = 0$ is $1$ $2$ $3$ $4$
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Sayan Bose
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105
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isi2019mma
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trignometry
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3
ISI2019MMA7
The value of $\frac{1}{2\sin10^\circ}$ – $2\sin70^\circ$ is $1/2$ $1$ $1/2$ $1$
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May 6
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Sayan Bose
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94
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isi2019mma
nongate
trignometry
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