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If 1, z1,z2,.......,z6 are the 7th roots...

If `1`, `z_1`,`z_2`,.......,`z_6` are the `7th` roots of unity then the value of `(2-z_1)(2-z_2)(2-z_3)(2-z_4)(2-z_5)(2-z_6)=` (a)`63` b. `127` c. `32` d. `31`

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RESONANCE DPP ENGLISH-JEE MAINS-All Questions
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  3. If 1, z1,z2,.......,z6 are the 7th roots of unity then the value of (...

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  12. Simplify the following expressions : (sqrt5-sqrt2)(sqrt5+sqrt2)

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