In a tetragonal crystal

1.	In a tetragonal crystal
Answer» a=B=C,`alpha=beta=90^@ NE GAMMA` `alpha=beta=gamma=90^@, a=bnec` `alpha=beta=gamma=90^@, a ne b ne c` `alpha=beta=90^@, gamma=120^@, a = b ne c` ANSWER :b

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