Question

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cos2 30°+sin2 30°-cosec2 45° find value ​

Answer 1

Answer:

here i have a bit of confusion about your notations

so if what u meant is

cos^2 30 + sin^2 30 - cosec^2 45{ HERE I AM NOT WRITING THE DEGREE SIGN BECAUSE I DONT KNOW HOW TO DO THAT }

then

cos 30 = √3/2

sin 30 = 1/2

and cosec 45 = √2

substituting these we get the given expression as

(√3/2)^2 + (1/2)^2 - (√2)^2 = 3/4 + 1/4 - 2 = -1

Answer 2

Step-by-step explanation:

here's ur correct answer friend

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