Question

can u pls answer the 4th question . pls answer it correct with solution . no spam ​

Answer 1

sin(-660°)=sin(4π-π/3)=+√3/2

tan(1050°)=tan(6π-π/6)=-1/√3

sec(-420°)=-sec(5π/2-π/6)=-2

cos(225°)=cos(180+45)=cos 180.cos45-sin180.sin45

= -1.√2/2-0.√2/2=-√2/2

cosec(315°)=(2π-π/4)=-√2

cos(510°)=(3π-π/6)=-√3/2

now the values

√3/2.-1/√3.-2/ √2/2.-√2.√3/2

on solving you will get

option c=2/√3

Answer 2

Step-by-step explanation:

answer is option c

hope it helps

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