(cosecθ + cosθ)2 + (secθ + sinθ)2 = ?

4(secα + cosecα)

Step-by-step explanation:

Start off by grouping the 2:

2(cosecα + cosα + secα + sinα) = 2 [(1/sinα) + cosα + sinα + (1/cosα)] = 2[(2sinα + 2cosα)/(sinα·cosα)] = 4[(sinα + cosα)/sinα·cosα] = 4(secα + cosecα)

d) 30 units^2

area of rectangle = l × b

we know,

length = 10 unit

breadth = 3 unit

applying the formula,

= l × b

= 10 × 3

= 30 unit^2

happy to

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answer: idk

step-by-step explanation: