Question

plz solve plz maths questions trigono mentry
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Answer 1

Step-by-step explanation:

this wll b the ans

may b ur que is some how wrong

as we all know

sin ²@ - 1 = cos ²@

but still u write sin²@ -1

as above pic

that is possiblity of ans......

thank u sol mch

Answer 2

Answer:

I hope answer is helpful to us