Question

Please answer this question ASAP. Maths. Class 11.

Answer 1

Hey there,

1/cos1cos2+1/cos2cos3+.........1/cos44cos45
Multiplying by sin1 we get-
tan1+(sin2cos1-sin1cos2)......=
tan1-tan1+tan2-tan2+.....tan45=
tan45=
sin45/cos45=
√2/x

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Answer 2

Hey mate.....

here's Ur answer....

Let's first multiply the whole value with sin1....

tan1 + ( sin2cos1- sin1cos2) =.

tan1 - tan1 + tan2 - tan2 +..........tan45 =
sin45/cos45

= √2/x .....

Hope it Helps❤❤❤