1.

F(x) =4* – 2*+1+11-cos 2x-for x= 0(log 2)for x = 0, at x = 0.​

Answer»

Answer:

In △ABC AB=AC

⇒∠B=∠C (Angles OPPOSITE to EQUAL sides are equal)

Now using angle sum property

∠A+∠B+∠C=180

∘

⇒80

∘

+∠C+∠C=180

∘

⇒2∠C=180

∘

−80

∘

⇒∠C=

2

100

∘

=50

∘

now ∠C+∠x=180

∘

(Angles made on STRAIGHT LINE (AC) are supplementary)

⇒50

∘

+∠x=180

∘

⇒∠x=180

∘

−50

∘

=130

∘

@ARSH

[email protected]_arsh_deep_29


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