Question

1.evaluate cos²30°cos²45°+4sec²60°+1/2cos²90°-2tan²60°
2.If sum of the zeroes of the quadratic polynomial f(x)= kx²+2x+3k is equal to their product, find the value of k.
please answer
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Answer 1

Answer:

oo bhai pagal hamko sin cos to katey nahi aata..