Question

please give steps :)​

Answer 1

Answer:

iv) 1 is correct answer

Answer 2

Answer: THE CORRECT OPTION IS (IV).

[SIN^2 30 + COS ^2 30 = 1 ,  SIN^2 60 + COS ^2 60 = 1 ,SIN^2 45 + COS ^2 45 = 1]

1 - 1 + 1

= 1

AND EVEN IF YOU PUT THE VALUES OF THEM THROUGH TRIGNOMETRICAL TABLE.

[(1/2)^2 + (ROOT 3/2)^2] - [(RT 3/2)^2 + (1/2)^2] + [(1/ROOT 2)^2 + (1/ROOT 2)^2]

I KNOW ITS COMPLCATED THATS WHY I KEPT A SPACE BETWEEN THAT

(1/4 + 3/4) - (3/4 + 1/4) + (1/2 + 1/2)

(4/4) - (4/4) + (2/2)

1 - 1 + 1

= 1

HOPE IT HELPS!

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